JP6248682B2 - Information processing apparatus, BIOS update method, and BIOS update program - Google Patents

Description

  The present invention relates to an information processing apparatus, a BIOS update method, and a BIOS update program.

  In an information processing apparatus such as a personal computer or a server, BIOS ("" is a firmware for initializing hardware at startup and controlling peripheral devices such as a keyboard and a display connected to the information processing apparatus. An abbreviation of “Basic Input / Output System”) is stored in a rewritable nonvolatile memory (for example, an EPROM (abbreviation of “Erasable Programmable Read Only Memory”)), and the nonvolatile memory is stored in a CPU (“ It is mounted on the system board together with the abbreviation of “Central Processing Unit”.

  In Patent Documents 1 to 3, when a new version of a BIOS program is developed by bug correction or function update, or when a system board is replaced due to a failure of an information processing apparatus, the BIOS program and setting information are stored. The technology to update automatically is described.

  As a related technique, Patent Document 4 describes a technique for determining whether or not new firmware for updating is illegal.

  Further, Patent Document 5 includes two BIOS programs. When updating the BIOS program, the standby BIOS program is updated first, and even when the standby BIOS program update fails, it is in operation. The technology for continuing the operation of the system by using the BIOS program is described.

JP-A-10-214183 JP 2012-137905 A JP 2013-140536 A JP 2006-053848 A JP 2011-204266 A

  However, in the information processing apparatus described above, when replacing the system board on which the non-volatile memory storing the BIOS program is replaced due to a failure of the information processing apparatus, for example, the user wants to use the latest version of the BIOS program after the replacement. Or, you want to continue to use the version of the BIOS program and BIOS setting information (various setting values that are used when the BIOS program is executed and can be arbitrarily set by the user) that have been used up to now even after replacement There is a problem in that maintenance personnel must respond appropriately in accordance with different preferences for each user, and a burden is placed on the maintenance personnel.

  Further, Patent Documents 1 to 5 do not describe a technique for exchanging a system board on which a BIOS program is mounted in accordance with such a different request for each user.

  The objective of this invention is providing the information processing apparatus, BIOS update method, and BIOS update program which can solve the problem mentioned above.

The first information processing apparatus of the present invention
Program execution means;
Normal use rewritable that stores a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user Non-volatile memory;
A backup rewritable nonvolatile memory storing a BIOS program, BIOS version information indicating the version of the BIOS program, and BIOS update type information;
The program execution means includes
A first process for determining whether or not the BIOS update state information stored in the normal use rewritable nonvolatile memory indicates updated;
In the first process, it is determined that the BIOS update status information stored in the normally used rewritable nonvolatile memory does not indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates non-update, the entire BIOS program stored in the normally used rewritable nonvolatile memory or a predetermined portion is stored in the backup rewritable nonvolatile memory. The BIOS version stored in the backup rewritable non-volatile memory is replaced with the BIOS version information stored in the normally used rewritable non-volatile memory while replacing the entire BIOS program or a predetermined part. Second process to replace information And the third process of updating the BIOS update state information so that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the first process Run
In the first process, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. A fourth process is executed to replace the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information being stored.

The second information processing apparatus of the present invention
Program execution means;
Normal use rewritable that stores a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user Non-volatile memory;
A backup rewritable nonvolatile memory storing a BIOS program, BIOS version information indicating the version of the BIOS program, and BIOS update type information;
The program execution means includes
A first process for determining whether or not the BIOS update state information stored in the normal use rewritable nonvolatile memory indicates updated;
In the first process, it is determined that the BIOS update status information stored in the normally used rewritable nonvolatile memory does not indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates downgrade update, the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is stored in the normally used rewritable nonvolatile memory. A second process for determining whether the version indicated by the BIOS version information is older than the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory in the second process. Is said normal use rewritable nonvolatile memory When it is older than the version indicated by the stored BIOS version information, the whole BIOS program stored in the backup rewritable nonvolatile memory or a predetermined portion is stored in the normally used rewritable nonvolatile memory. The BIOS stored in the normally used rewritable non-volatile memory is replaced with the BIOS version information stored in the backup rewritable non-volatile memory while replacing the entire BIOS program or a predetermined part. In the third process for replacing version information and the second process, the version of the BIOS program indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is the normal use document. When the version of the BIOS program indicated by the BIOS version information stored in the replaceable nonvolatile memory is not older than the BIOS program stored in the normally used rewritable nonvolatile memory, the entire BIOS program or a predetermined part of the BIOS program The entire BIOS program or a predetermined part stored in the backup rewritable nonvolatile memory is replaced, and the backup rewritable is performed with the BIOS version information stored in the normal use rewritable nonvolatile memory. A fourth process for replacing the BIOS version information stored in the nonvolatile memory, and the BIOS update status information so that the BIOS update status information stored in the normally used rewritable nonvolatile memory indicates updated. And the fifth process for updating the information, the first process is executed,
In the first process, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. A sixth process is executed to replace the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information being stored.

The third information processing apparatus of the present invention
Program execution means;
Normal use rewritable that stores a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user Non-volatile memory;
A backup rewritable nonvolatile memory storing a BIOS program, BIOS version information indicating the version of the BIOS program, and BIOS update type information;
The program execution means includes
A first process for determining whether or not the BIOS update state information stored in the normal use rewritable nonvolatile memory indicates updated;
In the first process, it is determined that the BIOS update status information stored in the normally used rewritable nonvolatile memory does not indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates upgrade update, the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is stored in the normally used rewritable nonvolatile memory. A second process for determining whether or not the version indicated by the BIOS version information is newer, and a BIOS program indicated by the BIOS version information stored in the backup rewritable nonvolatile memory in the second process; Version is the normal use rewrite When the version of the BIOS program indicated by the BIOS version information stored in the readable non-volatile memory is newer, the entire BIOS program stored in the backup rewritable non-volatile memory or a predetermined part of the BIOS program The whole BIOS program stored in the use rewritable nonvolatile memory or a predetermined part is replaced, and the BIOS version information stored in the backup rewritable nonvolatile memory is used to change the normal use rewritable nonvolatile memory. In the third process for replacing the BIOS version information stored in the memory and in the second process, the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory The BIOS program stored in the normal use rewritable non-volatile memory or a predetermined portion of the BIOS program stored in the normal use rewritable non-volatile memory is not newer than the version indicated by the BIOS version information stored in the normal use rewritable non-volatile memory. The whole BIOS program stored in the backup rewritable nonvolatile memory or a predetermined portion is replaced, and the BIOS version information stored in the normal use rewritable nonvolatile memory is used for the backup. A fourth process for replacing the BIOS version information stored in the rewritable nonvolatile memory, and the BIOS update so that the BIOS update status information stored in the normally used rewritable nonvolatile memory indicates updated. State After executing the fifth process for updating information, the first process is executed,
In the first process, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. A sixth process is executed to replace the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information being stored.

The fourth information processing apparatus of the present invention is
Program execution means;
Normal use rewritable that stores a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user Non-volatile memory;
A backup rewritable nonvolatile memory storing a BIOS program, BIOS version information indicating the version of the BIOS program, and BIOS update type information;
The program execution means includes
A first process for determining whether or not the BIOS update state information stored in the normal use rewritable nonvolatile memory indicates updated;
In the first process, it is determined that the BIOS update status information stored in the normally used rewritable nonvolatile memory does not indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates forced update, the whole BIOS program stored in the backup rewritable nonvolatile memory or a predetermined portion is stored in the normally used rewritable nonvolatile memory. The BIOS version stored in the normally used rewritable non-volatile memory is replaced with the BIOS version information stored in the backup rewritable non-volatile memory while replacing the entire BIOS program or a predetermined part. Second to replace information And the third process of updating the BIOS update state information so that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the first Execute the process,
In the first process, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. A fourth process is executed to replace the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information being stored.

Furthermore, the first BIOS update method of the present invention includes:
A normally used rewritable nonvolatile memory storing a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user A first step of determining whether or not the stored BIOS update status information indicates updated;
In the first step, it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory does not indicate updated, and BIOS version information indicating a version of the BIOS program and the BIOS program When the BIOS update type information stored in the backup rewritable nonvolatile memory storing the BIOS update type information indicates non-update, the BIOS stored in the normal use rewritable nonvolatile memory The whole or predetermined part of the program replaces the whole or predetermined part of the BIOS program stored in the backup rewritable nonvolatile memory, and the BIOS version information stored in the normally used rewritable nonvolatile memory And A second step of replacing the BIOS version information stored in the rewritable non-volatile memory for backup,
In the first step, the BIOS update state information stored in the normally used rewritable nonvolatile memory is determined not to indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates non-update, the BIOS update status information is updated so that the BIOS update status information stored in the normal use rewritable nonvolatile memory indicates updated. And the steps
In the first step, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. And a fourth step of replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information.

In addition, the second BIOS update method of the present invention includes:
A normally used rewritable nonvolatile memory storing a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user A first step of determining whether or not the stored BIOS update status information indicates updated;
In the first step, it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory does not indicate updated, and BIOS version information indicating a version of the BIOS program and the BIOS program When the BIOS update type information stored in the backup rewritable nonvolatile memory storing the BIOS and the BIOS update type information indicates a downgrade update, it is stored in the backup rewritable nonvolatile memory. A second step of determining whether or not a version indicated by the BIOS version information is older than a version indicated by the BIOS version information stored in the normally used rewritable nonvolatile memory;
In the second step, the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is greater than the version indicated by the BIOS version information stored in the normal use rewritable nonvolatile memory. When old, the whole BIOS program stored in the backup rewritable non-volatile memory or a predetermined portion of the BIOS program stored in the normal use rewritable non-volatile memory is changed to the whole or predetermined portion of the BIOS program. In addition, the BIOS version information stored in the backup rewritable nonvolatile memory is replaced with the BIOS version information stored in the normally used rewritable nonvolatile memory. And-up,
In the second step, the version of the BIOS program indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is the same as the BIOS version information stored in the normal use rewritable nonvolatile memory. The BIOS stored in the backup rewritable non-volatile memory is the whole or a predetermined portion of the BIOS program stored in the normally used rewritable non-volatile memory when it is not older than the BIOS program version shown. The entire program or a predetermined part is replaced, and the BIOS version information stored in the normally used rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. And a fourth step of replacing the serial BIOS version information,
In the first step, the BIOS update state information stored in the normally used rewritable nonvolatile memory is determined not to indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates a downgrade update, the BIOS update status information is updated so that the BIOS update status information stored in the normal use rewritable nonvolatile memory indicates updated. 5 steps,
In the first step, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. And replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information.

The third BIOS update method of the present invention is as follows.
A normally used rewritable nonvolatile memory storing a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user A first step of determining whether or not the stored BIOS update status information indicates updated;
In the first step, it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory does not indicate updated, and BIOS version information indicating a version of the BIOS program and the BIOS program When the BIOS update type information stored in the backup rewritable nonvolatile memory storing the BIOS and the BIOS update type information indicates an upgrade update, the BIOS stored in the backup rewritable nonvolatile memory is stored. A second step of determining whether the version indicated by the version information is older than the version indicated by the BIOS version information stored in the normally used rewritable nonvolatile memory;
In the second step, the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is greater than the version indicated by the BIOS version information stored in the normal use rewritable nonvolatile memory. When new, the whole BIOS program stored in the backup rewritable non-volatile memory or a predetermined portion of the BIOS program stored in the normal use rewritable non-volatile memory is changed. And replacing the BIOS version information stored in the normally used rewritable nonvolatile memory with the BIOS version information stored in the backup rewritable nonvolatile memory. And the step,
In the second step, the version of the BIOS program indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is the same as the BIOS version information stored in the normal use rewritable nonvolatile memory. The BIOS stored in the backup rewritable non-volatile memory is the whole or a predetermined part of the BIOS program stored in the normally used rewritable non-volatile memory when the version of the BIOS program is not newer. The entire program or a predetermined part is replaced, and the BIOS version information stored in the normally used rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. A fourth step of replacing the BIOS version information,
In the first step, the BIOS update state information stored in the normally used rewritable nonvolatile memory is determined not to indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates an upgrade update, the BIOS update status information is updated so that the BIOS update status information stored in the normal use rewritable nonvolatile memory indicates updated. And the steps
In the first step, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. And replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information.

The fourth BIOS update method of the present invention is as follows.
A normally used rewritable nonvolatile memory storing a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user A first step of determining whether or not the stored BIOS update status information indicates updated;
In the first step, it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory does not indicate updated, and BIOS version information indicating a version of the BIOS program and the BIOS program If the BIOS update type information stored in the backup rewritable nonvolatile memory storing the BIOS and the BIOS update type information indicates forced update, the BIOS stored in the backup rewritable nonvolatile memory is stored. The whole or predetermined part of the program replaces the whole or predetermined part of the BIOS program stored in the normally used rewritable nonvolatile memory and the BIOS version information stored in the backup rewritable nonvolatile memory. so A second step of replacing the BIOS version information stored in the normal use rewritable nonvolatile memory,
In the first step, the BIOS update state information stored in the normally used rewritable nonvolatile memory is determined not to indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates a forced update, the BIOS update type information stored in the normally used rewritable nonvolatile memory is the BIOS update type information stored in the backup rewritable nonvolatile memory. And updating the BIOS update status information so that the BIOS update status information stored in the normally used rewritable nonvolatile memory indicates updated,
In the first step, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. And a fourth step of replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information.

Furthermore, the first BIOS update program of the present invention includes:
The BIOS update state stored in the normally used rewritable nonvolatile memory storing the BIOS program, the BIOS version information indicating the BIOS program version, the BIOS update state information, and the BIOS update type information that can be arbitrarily set by the user A first process for determining whether or not the information indicates updated;
In the first process, it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory does not indicate updated, and BIOS version information indicating a version of the BIOS program and the BIOS program When the BIOS update type information stored in the backup rewritable nonvolatile memory storing the BIOS and the BIOS update type information indicates non-update, the normal use rewritable nonvolatile memory stores the The entire BIOS program or a predetermined portion of the first BIOS program replaces the entire BIOS program or the predetermined portion stored in the backup rewritable nonvolatile memory, and is stored in the normally used rewritable nonvolatile memory. Said BIOS version In broadcast, a second process of replacing the BIOS version information stored in the rewritable nonvolatile memory for the backup,
In the first process, it is determined that the BIOS update status information stored in the normally used rewritable nonvolatile memory does not indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates non-update, the BIOS update status information is updated so that the BIOS update status information stored in the normally used rewritable nonvolatile memory indicates updated. And processing
In the first process, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. And a fourth process for replacing the BIOS update type information stored in the backup rewritable non-volatile memory with the BIOS update type information.

In addition, the second BIOS update program of the present invention is
The BIOS update state stored in the normally used rewritable non-volatile memory storing the BIOS program, the BIOS version information indicating the BIOS program version, the BIOS update state information, and the BIOS update type information that can be arbitrarily set by the user A first process for determining whether or not the information indicates updated;
In the first process, it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory does not indicate updated, and BIOS version information indicating a version of the BIOS program and the BIOS program When the BIOS update type information stored in the backup rewritable nonvolatile memory storing the BIOS and the BIOS update type information indicates a downgrade update, it is stored in the backup rewritable nonvolatile memory. A second process for determining whether the version indicated by the BIOS version information is older than the version indicated by the BIOS version information stored in the normally used rewritable nonvolatile memory;
In the second process, the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is greater than the version indicated by the BIOS version information stored in the normal use rewritable nonvolatile memory. When old, the whole BIOS program stored in the backup rewritable non-volatile memory or a predetermined portion of the BIOS program stored in the normal use rewritable non-volatile memory is changed to the whole or predetermined portion of the BIOS program. A third process of replacing the BIOS version information stored in the normally used rewritable nonvolatile memory with the BIOS version information stored in the backup rewritable nonvolatile memory
In the second process, the version of the BIOS program indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is the same as the BIOS version information stored in the normal use rewritable nonvolatile memory. The BIOS stored in the backup rewritable non-volatile memory is the whole or a predetermined portion of the BIOS program stored in the normally used rewritable non-volatile memory when it is not older than the BIOS program version shown. The entire program or a predetermined part is replaced, and the BIOS version information stored in the normally used rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. A fourth process of replacing the IOS version information,
In the first process, it is determined that the BIOS update status information stored in the normally used rewritable nonvolatile memory does not indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates a downgrade update, the BIOS update status information is updated so that the BIOS update status information stored in the normal use rewritable nonvolatile memory indicates updated. 5 processing,
In the first process, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. And a sixth process for replacing the BIOS update type information stored in the backup rewritable non-volatile memory with the BIOS update type information.

  In the present invention, when the system board is replaced due to a failure of the information processing apparatus or the like, the entire BIOS program or a predetermined part stored in the normally used rewritable nonvolatile memory mounted on the replaced system board is There is an effect that it can be updated as desired by the user without burdening maintenance personnel.

It is a block diagram which shows embodiment of this invention. It is a flowchart which shows the starting process in embodiment of this invention. It is a flowchart which shows the non-update process in embodiment of this invention. It is a flowchart which shows the downgrade update process in embodiment of this invention. It is a flowchart which shows the upgrade update process in embodiment of this invention. It is a flowchart which shows the forced update process in embodiment of this invention.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a block diagram showing an embodiment of the present invention.

  Referring to FIG. 1, the present embodiment includes an information processing apparatus (also referred to as “computer”) 1, and the information processing apparatus 1 includes a system board 2.

  On the system board 2, a normally used rewritable nonvolatile memory 3, a backup rewritable nonvolatile memory 4 removable from the system board 2, and a program execution means 5 are mounted.

  The normal use rewritable nonvolatile memory 3 includes a BIOS program 10 including a program module group 102 including a startup program module 101 and other various program modules, BIOS update state information 11, BIOS version information 12, and BIOS settings. Information 13 is stored.

  The program execution means 5 executes a startup program module 101 and various program modules constituting the program module group 102 included in the BIOS program 10.

  Various program modules constituting the program module group 102 initialize the hardware of various electronic circuits (not shown) constituting the information processing apparatus 1 or execute information processing when executed by the program execution means 5. It controls peripheral devices such as a keyboard and a display connected to the device 1.

  The BIOS update status information 11 indicates “updated” or “not updated”.

  The BIOS version information 12 is information indicating the version of the BIOS program 10 stored in the normally used rewritable nonvolatile memory 3.

  The BIOS setting information 13 is referred to when a specific program module constituting the program module group 102 stored in the normally used rewritable nonvolatile memory 3 is executed, and indicates various setting values that can be arbitrarily set by the user. Information.

  The BIOS setting information 13 includes BIOS update type information.

  The BIOS update type information is information indicating the type of BIOS program update. The update types include “non-update”, “downgrade update”, “upgrade update”, and “forced update”.

  Next, the operation of this embodiment will be described in detail.

  Now, the backup rewritable nonvolatile memory 4 stores the whole or a predetermined portion of the BIOS program 10 stored in the normally used rewritable nonvolatile memory 3, the BIOS setting information 13 and the BIOS version information 12. And

  When a failure occurs in the information processing apparatus 1 and the system board 2 is replaced during operation of the information processing apparatus, the maintenance staff removes the system board 2 from the information processing apparatus 1 and is mounted on the removed system board 2. The backup rewritable nonvolatile memory 4 is removed and mounted on a new system board, and the new system board is mounted on the information processing apparatus 1.

  In the following, for convenience of explanation, the new system board and the components mounted on the board have the same reference numerals as those assigned to the system board before replacement and the components mounted on the board. Will be described.

  When the information processing apparatus 1 is turned on after the board is replaced, the program execution means 5 on the new system board 2 starts up the startup program module 101 in the BIOS program 10 stored in the normally used rewritable nonvolatile memory 3. Execute.

  Note that the BIOS update state information 11 stored in the normal use rewritable nonvolatile memory 3 mounted on the new system board 2 indicates “not updated” as an initial state.

  FIG. 2 is a flowchart showing a startup process performed by the program execution unit 5 executing the startup program module 101.

  Referring to FIG. 2, first, the program execution means 5 refers to the BIOS update state information 11 stored in the normal use rewritable nonvolatile memory 3 to determine whether or not the update state information 11 indicates “updated”. Is determined (step S101).

  When the BIOS update status information 11 does not indicate “updated” (NO in step S101), the program execution unit 5 determines that the BIOS included in the BIOS setting information stored in the backup rewritable nonvolatile memory 4 Reference is made to the update type information (step S102).

  When the BIOS update type information referred to in step S102 indicates “non-update”, the program execution unit 5 executes the non-update process (step S103) and then stores it in the backup rewritable nonvolatile memory 4. The BIOS setting information stored in the normal use rewritable nonvolatile memory 3 is replaced with the BIOS update status information 11 stored in the normal use rewritable nonvolatile memory 3 with “updated”. As shown, the BIOS update status information 11 is updated (step S108), and the process returns to step S101.

  FIG. 3 is a flowchart showing details of the non-update process in step S103.

  Referring to FIG. 3, the program execution means 5 is a BIOS stored in the backup rewritable nonvolatile memory 4 in the whole or a predetermined portion of the BIOS program 10 stored in the normally used rewritable nonvolatile memory 3. The entire program or a predetermined part is replaced, and the BIOS version information 10 stored in the normal rewritable nonvolatile memory 3 is replaced with the BIOS version information stored in the backup rewritable nonvolatile memory 4 (step S201).

  In addition, when the BIOS update type information referred to in step S102 in FIG. 2 indicates “downgrade update”, the program execution unit 5 can perform backup rewrite after executing the downgrade update process (step S104). The BIOS setting information stored in the non-volatile memory 4 replaces the BIOS setting information 13 stored in the normal use rewritable non-volatile memory 3, and the BIOS update state information stored in the normal use rewritable non-volatile memory 3. The BIOS update state information 11 is updated so that 11 indicates “updated” (step S108), and the process returns to step S101.

  FIG. 4 is a flowchart showing details of the downgrade update process in step S104.

  Referring to FIG. 4, the program execution means 5 stores the version indicated by the BIOS version information 12 stored in the normally used rewritable nonvolatile memory 3 and the BIOS version information stored in the backup rewritable nonvolatile memory 4. The version shown is compared (step S301).

  When the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory 4 is older than the version indicated by the BIOS version information 12 stored in the normal use rewritable nonvolatile memory 3 (YES in step S301) In this case, the program execution means 5 is the entire BIOS program stored in the backup rewritable nonvolatile memory 4 or a predetermined part of the BIOS program 10 stored in the normally used rewritable nonvolatile memory 3. The whole or a predetermined part is replaced, and the BIOS version information stored in the normally used rewritable nonvolatile memory 3 is replaced with the BIOS version information stored in the backup rewritable nonvolatile memory 4 (S -Up S302).

  On the other hand, in step S301 in FIG. 4, the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory 4 is greater than the version indicated by the BIOS version information 12 stored in the normal use rewritable nonvolatile memory 3. If it is not too old (NO in step S301), the program execution means 5 uses the entire BIOS program 10 stored in the normally used rewritable nonvolatile memory 3 or a predetermined portion of the backup rewritable nonvolatile memory. 4 is replaced with the BIOS version information 10 stored in the rewritable nonvolatile memory 3 for normal use and stored in the rewritable nonvolatile memory 4 for backup. B Replace the OS version information (step S303).

  In addition, when the BIOS update type information referred to in step S102 of FIG. 2 indicates “upgrade update”, the program execution unit 5 executes the upgrade update process (step S105), and then the backup rewritable nonvolatile memory. The BIOS setting information stored in the memory 4 replaces the BIOS setting information 13 stored in the normal use rewritable nonvolatile memory 3 and the BIOS update state information 11 stored in the normal use rewritable nonvolatile memory 3 The BIOS update status information 11 is updated so as to indicate “updated” (step S108), and the process returns to step S101.

  FIG. 5 is a flowchart showing details of the upgrade update process in step S105.

  Referring to FIG. 5, the program execution means 5 stores the version indicated by the BIOS version information 12 stored in the normal use rewritable nonvolatile memory 3 and the BIOS version information stored in the backup rewritable nonvolatile memory 4. The version shown is compared (step S401).

  When the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory 4 is newer than the version indicated by the BIOS version information 12 stored in the normal use rewritable nonvolatile memory 3 (YES in step S401) In this case, the program execution means 5 is the entire BIOS program stored in the backup rewritable nonvolatile memory 4 or a predetermined part of the BIOS program 10 stored in the normally used rewritable nonvolatile memory 3. The whole or a predetermined part is replaced, and the BIOS version information stored in the normal rewritable nonvolatile memory 3 is replaced with the BIOS version information stored in the backup rewritable nonvolatile memory 4 ( Step S402).

  On the other hand, in step S401 in FIG. 5, the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory 4 is the version indicated by the BIOS version information 12 stored in the normal use rewritable nonvolatile memory 3. If it is not newer (NO in step S401), the program execution means 5 uses the entire BIOS program 10 stored in the normally used rewritable nonvolatile memory 3 or a predetermined portion of the rewritable nonvolatile memory for backup. The entire BIOS program or a predetermined part stored in the memory 4 is replaced, and the BIOS version information 10 stored in the normally used rewritable nonvolatile memory 3 is stored in the backup rewritable nonvolatile memory 4. That replace the BIOS version information (step S403).

  If the BIOS update type information referred to in step S102 in FIG. 2 indicates “forced update”, the program execution means 5 executes the forced update process (step S106), and then the rewritable nonvolatile memory for backup. The BIOS setting information stored in the memory 4 replaces the BIOS setting information 13 stored in the normal use rewritable nonvolatile memory 3 and the BIOS update state information 11 stored in the normal use rewritable nonvolatile memory 3 The BIOS update status information 11 is updated so as to indicate “updated” (step S108), and the process returns to step S101.

  FIG. 6 is a flowchart showing details of the forced update process in step S106.

  Referring to FIG. 6, the program execution means 5 is a BIOS program stored in the normally used rewritable nonvolatile memory 3 as a whole or a predetermined portion of the BIOS program stored in the backup rewritable nonvolatile memory 4. 10 is replaced with the BIOS version information stored in the backup rewritable nonvolatile memory 4 and the BIOS version information 12 stored in the normally used rewritable nonvolatile memory 3 (step) S501).

  On the other hand, when the BIOS update state information 11 indicates “updated” in step S101 of FIG. 2 (YES in step S101), the program execution means 5 is stored in the normally used rewritable nonvolatile memory 3. The BIOS setting information 13 stored in the backup rewritable non-volatile memory 4 is replaced with the BIOS setting information 13 (step S107), and the activation process is terminated.

  In the present embodiment, the BIOS setting information stored in the normal rewritable nonvolatile memory 3 is replaced with the BIOS setting information stored in the backup rewritable nonvolatile memory 4 in step S108. If the BIOS setting information before replacement of the system board 2 does not need to be taken over after the replacement, this replacement may not be performed. Further, in step S107, the BIOS setting information is replaced. It goes without saying that only the BIOS update type information included in the information may be replaced.

  As described above, in the present embodiment, when the system board 2 is replaced due to a failure of the information processing apparatus 1 or the like, the BIOS program 10 stored in the normal use rewritable nonvolatile memory 3 mounted on the system board 2 after the replacement. There is an effect that the whole or a predetermined part can be updated as desired by the user without placing a burden on maintenance personnel.

  The reason is that the BIOS setting information 13 that can be arbitrarily set by the user includes the BIOS update type information, and the entire BIOS program 10 or a predetermined part can be updated according to the BIOS update type information set by the user. It was because it did so.

  In addition, this invention is not limited to embodiment mentioned above, A various deformation | transformation is possible in the case of the implementation.

For example, some or all of the above-described embodiments can be described as the following supplementary notes, but are not limited to the following supplementary notes.
(Appendix 1)
Program execution means;
Normal use rewritable that stores a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user Non-volatile memory;
A backup rewritable nonvolatile memory storing a BIOS program, BIOS version information indicating the version of the BIOS program, and BIOS update type information;
The program execution means includes
A first process for determining whether or not the BIOS update state information stored in the normal use rewritable nonvolatile memory indicates updated;
In the first process, it is determined that the BIOS update status information stored in the normally used rewritable nonvolatile memory does not indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates non-update, the entire BIOS program stored in the normally used rewritable nonvolatile memory or a predetermined portion is stored in the backup rewritable nonvolatile memory. The BIOS version stored in the backup rewritable non-volatile memory is replaced with the BIOS version information stored in the normally used rewritable non-volatile memory while replacing the entire BIOS program or a predetermined part. Second process to replace information And the third process of updating the BIOS update state information so that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the first process Run
In the first process, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. An information processing apparatus that executes a fourth process of replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information that is stored.
(Appendix 2)
Program execution means;
Normal use rewritable that stores a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user Non-volatile memory;
A backup rewritable nonvolatile memory storing a BIOS program, BIOS version information indicating the version of the BIOS program, and BIOS update type information;
The program execution means includes
A first process for determining whether or not the BIOS update state information stored in the normal use rewritable nonvolatile memory indicates updated;
In the first process, it is determined that the BIOS update status information stored in the normally used rewritable nonvolatile memory does not indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates downgrade update, the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is stored in the normally used rewritable nonvolatile memory. A second process for determining whether the version indicated by the BIOS version information is older than the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory in the second process. Is said normal use rewritable nonvolatile memory When it is older than the version indicated by the stored BIOS version information, the whole BIOS program stored in the backup rewritable nonvolatile memory or a predetermined portion is stored in the normally used rewritable nonvolatile memory. The BIOS stored in the normally used rewritable non-volatile memory is replaced with the BIOS version information stored in the backup rewritable non-volatile memory while replacing the entire BIOS program or a predetermined part. In the third process for replacing version information and the second process, the version of the BIOS program indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is the normal use document. When the version of the BIOS program indicated by the BIOS version information stored in the replaceable nonvolatile memory is not older than the BIOS program stored in the normally used rewritable nonvolatile memory, the entire BIOS program or a predetermined part of the BIOS program The entire BIOS program or a predetermined part stored in the backup rewritable nonvolatile memory is replaced, and the backup rewritable is performed with the BIOS version information stored in the normal use rewritable nonvolatile memory. A fourth process for replacing the BIOS version information stored in the nonvolatile memory, and the BIOS update status information so that the BIOS update status information stored in the normally used rewritable nonvolatile memory indicates updated. And the fifth process for updating the information, the first process is executed,
In the first process, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. An information processing apparatus that executes a sixth process of replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information that is stored.
(Appendix 3)
Program execution means;
Normal use rewritable that stores a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user Non-volatile memory;
A backup rewritable nonvolatile memory storing a BIOS program, BIOS version information indicating the version of the BIOS program, and BIOS update type information;
The program execution means includes
A first process for determining whether or not the BIOS update state information stored in the normal use rewritable nonvolatile memory indicates updated;
In the first process, it is determined that the BIOS update status information stored in the normally used rewritable nonvolatile memory does not indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates upgrade update, the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is stored in the normally used rewritable nonvolatile memory. A second process for determining whether or not the version indicated by the BIOS version information is newer, and a BIOS program indicated by the BIOS version information stored in the backup rewritable nonvolatile memory in the second process; Version is the normal use rewrite When the version of the BIOS program indicated by the BIOS version information stored in the readable non-volatile memory is newer, the entire BIOS program stored in the backup rewritable non-volatile memory or a predetermined part of the BIOS program The whole BIOS program stored in the use rewritable nonvolatile memory or a predetermined part is replaced, and the BIOS version information stored in the backup rewritable nonvolatile memory is used to change the normal use rewritable nonvolatile memory. In the third process for replacing the BIOS version information stored in the memory and in the second process, the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory The BIOS program stored in the normal use rewritable non-volatile memory or a predetermined portion of the BIOS program stored in the normal use rewritable non-volatile memory is not newer than the version indicated by the BIOS version information stored in the normal use rewritable non-volatile memory. The whole BIOS program stored in the backup rewritable nonvolatile memory or a predetermined portion is replaced, and the BIOS version information stored in the normal use rewritable nonvolatile memory is used for the backup. A fourth process for replacing the BIOS version information stored in the rewritable nonvolatile memory, and the BIOS update so that the BIOS update status information stored in the normally used rewritable nonvolatile memory indicates updated. State After executing the fifth process for updating information, the first process is executed,
In the first process, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. An information processing apparatus that executes a sixth process of replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information that is stored.
(Appendix 4)
Program execution means;
Normal use rewritable that stores a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user Non-volatile memory;
A backup rewritable nonvolatile memory storing a BIOS program, BIOS version information indicating the version of the BIOS program, and BIOS update type information;
The program execution means includes
A first process for determining whether or not the BIOS update state information stored in the normal use rewritable nonvolatile memory indicates updated;
In the first process, it is determined that the BIOS update status information stored in the normally used rewritable nonvolatile memory does not indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates forced update, the whole BIOS program stored in the backup rewritable nonvolatile memory or a predetermined portion is stored in the normally used rewritable nonvolatile memory. The BIOS version stored in the normally used rewritable non-volatile memory is replaced with the BIOS version information stored in the backup rewritable non-volatile memory while replacing the entire BIOS program or a predetermined part. Second to replace information And the third process of updating the BIOS update state information so that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the first Execute the process,
In the first process, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. An information processing apparatus that executes a fourth process of replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information that is stored.
(Appendix 5)
A normally used rewritable nonvolatile memory storing a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user A first step of determining whether or not the stored BIOS update status information indicates updated;
In the first step, it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory does not indicate updated, and BIOS version information indicating a version of the BIOS program and the BIOS program When the BIOS update type information stored in the backup rewritable nonvolatile memory storing the BIOS update type information indicates non-update, the BIOS stored in the normal use rewritable nonvolatile memory The whole or predetermined part of the program replaces the whole or predetermined part of the BIOS program stored in the backup rewritable nonvolatile memory, and the BIOS version information stored in the normally used rewritable nonvolatile memory And A second step of replacing the BIOS version information stored in the rewritable non-volatile memory for backup,
In the first step, the BIOS update state information stored in the normally used rewritable nonvolatile memory is determined not to indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates non-update, the BIOS update status information is updated so that the BIOS update status information stored in the normally used rewritable nonvolatile memory indicates updated. And the steps
In the first step, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. A BIOS update method comprising: replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information.
(Appendix 6)
A normally used rewritable nonvolatile memory storing a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user A first step of determining whether or not the stored BIOS update status information indicates updated;
In the first step, it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory does not indicate updated, and BIOS version information indicating a version of the BIOS program and the BIOS program When the BIOS update type information stored in the backup rewritable nonvolatile memory storing the BIOS and the BIOS update type information indicates a downgrade update, it is stored in the backup rewritable nonvolatile memory. A second step of determining whether or not a version indicated by the BIOS version information is older than a version indicated by the BIOS version information stored in the normally used rewritable nonvolatile memory;
In the second step, the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is greater than the version indicated by the BIOS version information stored in the normal use rewritable nonvolatile memory. When old, the whole BIOS program stored in the backup rewritable non-volatile memory or a predetermined portion of the BIOS program stored in the normal use rewritable non-volatile memory is changed to the whole or predetermined portion of the BIOS program. In addition, the BIOS version information stored in the backup rewritable nonvolatile memory is replaced with the BIOS version information stored in the normally used rewritable nonvolatile memory. And-up,
In the second step, the version of the BIOS program indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is the same as the BIOS version information stored in the normal use rewritable nonvolatile memory. The BIOS stored in the backup rewritable non-volatile memory is the whole or a predetermined portion of the BIOS program stored in the normally used rewritable non-volatile memory when it is not older than the BIOS program version shown. The entire program or a predetermined part is replaced, and the BIOS version information stored in the normally used rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. And a fourth step of replacing the serial BIOS version information,
In the first step, the BIOS update state information stored in the normally used rewritable nonvolatile memory is determined not to indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates a downgrade update, the BIOS update status information is updated so that the BIOS update status information stored in the normal use rewritable nonvolatile memory indicates updated. 5 steps,
In the first step, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. A BIOS update method comprising: replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information.
(Appendix 7)
A normally used rewritable nonvolatile memory storing a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user A first step of determining whether or not the stored BIOS update status information indicates updated;
In the first step, it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory does not indicate updated, and BIOS version information indicating a version of the BIOS program and the BIOS program When the BIOS update type information stored in the backup rewritable nonvolatile memory storing the BIOS and the BIOS update type information indicates an upgrade update, the BIOS stored in the backup rewritable nonvolatile memory is stored. A second step of determining whether the version indicated by the version information is older than the version indicated by the BIOS version information stored in the normally used rewritable nonvolatile memory;
In the second step, the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is greater than the version indicated by the BIOS version information stored in the normal use rewritable nonvolatile memory. When new, the whole BIOS program stored in the backup rewritable non-volatile memory or a predetermined portion of the BIOS program stored in the normal use rewritable non-volatile memory is changed. And replacing the BIOS version information stored in the normally used rewritable nonvolatile memory with the BIOS version information stored in the backup rewritable nonvolatile memory. And the step,
In the second step, the version of the BIOS program indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is the same as the BIOS version information stored in the normal use rewritable nonvolatile memory. The BIOS stored in the backup rewritable non-volatile memory is the whole or a predetermined part of the BIOS program stored in the normally used rewritable non-volatile memory when the version of the BIOS program is not newer. The entire program or a predetermined part is replaced, and the BIOS version information stored in the normally used rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. A fourth step of replacing the BIOS version information,
In the first step, the BIOS update state information stored in the normally used rewritable nonvolatile memory is determined not to indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates an upgrade update, the BIOS update status information is updated so that the BIOS update status information stored in the normal use rewritable nonvolatile memory indicates updated. And the steps
In the first step, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. A BIOS update method comprising: replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information.
(Appendix 8)
A normally used rewritable nonvolatile memory storing a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user A first step of determining whether or not the stored BIOS update status information indicates updated;
In the first step, it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory does not indicate updated, and BIOS version information indicating a version of the BIOS program and the BIOS program If the BIOS update type information stored in the backup rewritable nonvolatile memory storing the BIOS and the BIOS update type information indicates forced update, the BIOS stored in the backup rewritable nonvolatile memory is stored. The whole or predetermined part of the program replaces the whole or predetermined part of the BIOS program stored in the normally used rewritable nonvolatile memory and the BIOS version information stored in the backup rewritable nonvolatile memory. so A second step of replacing the BIOS version information stored in the normal use rewritable nonvolatile memory,
In the first step, the BIOS update state information stored in the normally used rewritable nonvolatile memory is determined not to indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates forced update, the BIOS update status information is updated so that the BIOS update status information stored in the normal use rewritable nonvolatile memory indicates updated. And the steps
In the first step, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. A BIOS update method comprising: replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information.
(Appendix 9)
The BIOS update state stored in the normally used rewritable nonvolatile memory storing the BIOS program, the BIOS version information indicating the BIOS program version, the BIOS update state information, and the BIOS update type information that can be arbitrarily set by the user A first process for determining whether or not the information indicates updated;
In the first process, it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory does not indicate updated, and BIOS version information indicating a version of the BIOS program and the BIOS program When the BIOS update type information stored in the backup rewritable nonvolatile memory storing the BIOS and the BIOS update type information indicates non-update, the normal use rewritable nonvolatile memory stores the The entire BIOS program or a predetermined portion of the first BIOS program replaces the entire BIOS program or the predetermined portion stored in the backup rewritable nonvolatile memory, and is stored in the normally used rewritable nonvolatile memory. Said BIOS version In broadcast, a second process of replacing the BIOS version information stored in the rewritable nonvolatile memory for the backup,
In the first process, it is determined that the BIOS update status information stored in the normally used rewritable nonvolatile memory does not indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates non-update, the BIOS update status information is updated so that the BIOS update status information stored in the normally used rewritable nonvolatile memory indicates updated. And processing
In the first process, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. A BIOS update program for causing a computer to execute a fourth process of replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information.
(Appendix 10)
The BIOS update state stored in the normally used rewritable non-volatile memory storing the BIOS program, the BIOS version information indicating the BIOS program version, the BIOS update state information, and the BIOS update type information that can be arbitrarily set by the user A first process for determining whether or not the information indicates updated;
In the first process, it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory does not indicate updated, and BIOS version information indicating a version of the BIOS program and the BIOS program When the BIOS update type information stored in the backup rewritable nonvolatile memory storing the BIOS and the BIOS update type information indicates a downgrade update, it is stored in the backup rewritable nonvolatile memory. A second process for determining whether the version indicated by the BIOS version information is older than the version indicated by the BIOS version information stored in the normally used rewritable nonvolatile memory;
In the second process, the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is greater than the version indicated by the BIOS version information stored in the normal use rewritable nonvolatile memory. When old, the whole BIOS program stored in the backup rewritable non-volatile memory or a predetermined portion of the BIOS program stored in the normal use rewritable non-volatile memory is changed to the whole or predetermined portion of the BIOS program. A third process of replacing the BIOS version information stored in the normally used rewritable nonvolatile memory with the BIOS version information stored in the backup rewritable nonvolatile memory
In the second process, the version of the BIOS program indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is the same as the BIOS version information stored in the normal use rewritable nonvolatile memory. The BIOS stored in the backup rewritable non-volatile memory is the whole or a predetermined portion of the BIOS program stored in the normally used rewritable non-volatile memory when it is not older than the BIOS program version shown. The entire program or a predetermined part is replaced, and the BIOS version information stored in the normally used rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. A fourth process of replacing the IOS version information,
In the first process, it is determined that the BIOS update status information stored in the normally used rewritable nonvolatile memory does not indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates a downgrade update, the BIOS update status information is updated so that the BIOS update status information stored in the normal use rewritable nonvolatile memory indicates updated. 5 processing,
In the first process, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. A BIOS update program for causing a computer to execute a sixth process for replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information.
(Appendix 11)
The BIOS update state stored in the normally used rewritable non-volatile memory storing the BIOS program, the BIOS version information indicating the BIOS program version, the BIOS update state information, and the BIOS update type information that can be arbitrarily set by the user A first process for determining whether or not the information indicates updated;
In the first process, it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory does not indicate updated, and BIOS version information indicating a version of the BIOS program and the BIOS program When the BIOS update type information stored in the backup rewritable nonvolatile memory storing the BIOS and the BIOS update type information indicates an upgrade update, the BIOS stored in the backup rewritable nonvolatile memory is stored. A second process for determining whether the version indicated by the version information is older than the version indicated by the BIOS version information stored in the normally used rewritable nonvolatile memory;
In the second process, the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is greater than the version indicated by the BIOS version information stored in the normal use rewritable nonvolatile memory. When new, the whole BIOS program stored in the backup rewritable non-volatile memory or a predetermined portion of the BIOS program stored in the normal use rewritable non-volatile memory is changed. And a third process of replacing the BIOS version information stored in the normally used rewritable nonvolatile memory with the BIOS version information stored in the backup rewritable nonvolatile memory ,
In the second process, the version of the BIOS program indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is the same as the BIOS version information stored in the normal use rewritable nonvolatile memory. The BIOS stored in the backup rewritable non-volatile memory is the whole or a predetermined part of the BIOS program stored in the normally used rewritable non-volatile memory when the version of the BIOS program is not newer. Before replacing the whole program or a predetermined part and storing the BIOS version information stored in the normally used rewritable nonvolatile memory with the BIOS rewritable nonvolatile memory And a fourth of the process of replacing the BIOS version information,
In the first process, it is determined that the BIOS update status information stored in the normally used rewritable nonvolatile memory does not indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates an upgrade update, the BIOS update status information is updated so that the BIOS update status information stored in the normal use rewritable nonvolatile memory indicates updated. And processing
In the first process, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. A BIOS update program for causing a computer to execute a sixth process for replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information.
(Appendix 12)
The BIOS update state stored in the normally used rewritable non-volatile memory storing the BIOS program, the BIOS version information indicating the BIOS program version, the BIOS update state information, and the BIOS update type information that can be arbitrarily set by the user A first process for determining whether or not the information indicates updated;
In the first process, it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory does not indicate updated, and BIOS version information indicating a version of the BIOS program and the BIOS program If the BIOS update type information stored in the backup rewritable nonvolatile memory storing the BIOS and the BIOS update type information indicates forced update, the BIOS stored in the backup rewritable nonvolatile memory is stored. The whole or predetermined part of the program replaces the whole or predetermined part of the BIOS program stored in the normally used rewritable nonvolatile memory and the BIOS version information stored in the backup rewritable nonvolatile memory. Before A second process of replacing the BIOS version information stored in the normal use rewritable nonvolatile memory,
In the first process, it is determined that the BIOS update status information stored in the normally used rewritable nonvolatile memory does not indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates forced update, the BIOS update status information is updated so that the BIOS update status information stored in the normal use rewritable nonvolatile memory indicates updated. And processing
In the first process, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. A BIOS update program for causing a computer to execute a fourth process of replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information.

DESCRIPTION OF SYMBOLS 1 Information processing apparatus 2 System board 3 Normal use rewritable non-volatile memory 4 Backup rewritable non-volatile memory 5 Program execution means 10 BIOS program 11 BIOS update state information 12 BIOS version information 13 BIOS setting information 101 Boot program module 102 Program module group

Claims (10)

Program execution means;
Normal use rewritable that stores a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user Non-volatile memory;
A backup rewritable nonvolatile memory storing a BIOS program, BIOS version information indicating the version of the BIOS program, and BIOS update type information;
The program execution means includes
A first process for determining whether or not the BIOS update state information stored in the normal use rewritable nonvolatile memory indicates updated;
In the first process, it is determined that the BIOS update status information stored in the normally used rewritable nonvolatile memory does not indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates non-update, the entire BIOS program stored in the normally used rewritable nonvolatile memory or a predetermined portion is stored in the backup rewritable nonvolatile memory. The BIOS version stored in the backup rewritable non-volatile memory is replaced with the BIOS version information stored in the normally used rewritable non-volatile memory while replacing the entire BIOS program or a predetermined part. Second process to replace information And the third process of updating the BIOS update state information so that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the first process Run
In the first process, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. An information processing apparatus that executes a fourth process of replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information that is stored. Program execution means;
Normal use rewritable that stores a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user Non-volatile memory;
A backup rewritable nonvolatile memory storing a BIOS program, BIOS version information indicating the version of the BIOS program, and BIOS update type information;
The program execution means includes
A first process for determining whether or not the BIOS update state information stored in the normal use rewritable nonvolatile memory indicates updated;
In the first process, it is determined that the BIOS update status information stored in the normally used rewritable nonvolatile memory does not indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates downgrade update, the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is stored in the normally used rewritable nonvolatile memory. A second process for determining whether or not the version indicated by the BIOS version information is older, and a version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory in the second process; In the normal use rewritable nonvolatile memory When it is older than the version indicated by the stored BIOS version information, the entire BIOS program stored in the backup rewritable nonvolatile memory or a predetermined part is stored in the normally used rewritable nonvolatile memory. The BIOS stored in the normally used rewritable non-volatile memory is replaced with the BIOS version information stored in the backup rewritable non-volatile memory while replacing the entire BIOS program or a predetermined part. In the third process for replacing version information and the second process, the version of the BIOS program indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is the normal use rewrite. When the version of the BIOS program indicated by the BIOS version information stored in the readable non-volatile memory is not older than the BIOS program stored in the normally used rewritable non-volatile memory, the entire BIOS program or a predetermined part is used. The entire BIOS program or a predetermined portion stored in the backup rewritable nonvolatile memory is replaced, and the backup rewritable nonvolatile memory is replaced with the BIOS version information stored in the normally used rewritable nonvolatile memory. The BIOS update status information is updated so that the BIOS update status information stored in the normal use rewritable nonvolatile memory is updated, and the fourth process replaces the BIOS version information stored in the memory. After executing the fifth process to be updated, the first process is executed,
In the first process, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. An information processing apparatus that executes a sixth process of replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information that is stored. Program execution means;
Normal use rewritable that stores a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user Non-volatile memory;
A backup rewritable nonvolatile memory storing a BIOS program, BIOS version information indicating the version of the BIOS program, and BIOS update type information;
The program execution means includes
A first process for determining whether or not the BIOS update state information stored in the normal use rewritable nonvolatile memory indicates updated;
In the first process, it is determined that the BIOS update status information stored in the normally used rewritable nonvolatile memory does not indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates upgrade update, the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is stored in the normally used rewritable nonvolatile memory. A second process for determining whether or not the version indicated by the BIOS version information is newer, and a BIOS program indicated by the BIOS version information stored in the backup rewritable nonvolatile memory in the second process; Version is the normal use rewrite When the version of the BIOS program indicated by the BIOS version information stored in the readable non-volatile memory is newer, the entire BIOS program stored in the backup rewritable non-volatile memory or a predetermined part of the BIOS program The whole BIOS program stored in the use rewritable nonvolatile memory or a predetermined part is replaced, and the BIOS version information stored in the backup rewritable nonvolatile memory is used to change the normal use rewritable nonvolatile memory. In the third process for replacing the BIOS version information stored in the memory and in the second process, the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory The BIOS program stored in the normal use rewritable non-volatile memory or a predetermined portion of the BIOS program stored in the normal use rewritable non-volatile memory is not newer than the version indicated by the BIOS version information stored in the normal use rewritable non-volatile memory. The whole BIOS program stored in the backup rewritable nonvolatile memory or a predetermined portion is replaced, and the BIOS version information stored in the normal use rewritable nonvolatile memory is used for the backup. A fourth process for replacing the BIOS version information stored in the rewritable nonvolatile memory, and the BIOS update so that the BIOS update status information stored in the normally used rewritable nonvolatile memory indicates updated. State After executing the fifth process for updating information, the first process is executed,
In the first process, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. An information processing apparatus that executes a sixth process of replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information that is stored. Program execution means;
Normal use rewritable that stores a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user Non-volatile memory;
A backup rewritable nonvolatile memory storing a BIOS program, BIOS version information indicating the version of the BIOS program, and BIOS update type information;
The program execution means includes
A first process for determining whether or not the BIOS update state information stored in the normal use rewritable nonvolatile memory indicates updated;
In the first process, it is determined that the BIOS update status information stored in the normally used rewritable nonvolatile memory does not indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates forced update, the whole BIOS program stored in the backup rewritable nonvolatile memory or a predetermined portion is stored in the normally used rewritable nonvolatile memory. The BIOS version stored in the normally used rewritable non-volatile memory is replaced with the BIOS version information stored in the backup rewritable non-volatile memory while replacing the entire BIOS program or a predetermined part. Second to replace information And the third process of updating the BIOS update state information so that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the first Execute the process,
In the first process, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. An information processing apparatus that executes a fourth process of replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information that is stored. A normally used rewritable nonvolatile memory storing a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user A first step of determining whether or not the stored BIOS update status information indicates updated;
In the first step, it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory does not indicate updated, and BIOS version information indicating a version of the BIOS program and the BIOS program When the BIOS update type information stored in the backup rewritable nonvolatile memory storing the BIOS and the BIOS update type information indicates non-update, the normal use rewritable nonvolatile memory stores the The whole or predetermined part of the BIOS program replaces the whole or predetermined part of the BIOS program stored in the backup rewritable non-volatile memory, and is stored in the normally used rewritable non-volatile memory. BIOS version information In a second step of replacing the BIOS version information stored in the rewritable nonvolatile memory for the backup,
In the first step, the BIOS update state information stored in the normally used rewritable nonvolatile memory is determined not to indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates non-update, the BIOS update status information is updated so that the BIOS update status information stored in the normally used rewritable nonvolatile memory indicates updated. And the steps
In the first step, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. A BIOS update method comprising: replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information. A normally used rewritable nonvolatile memory storing a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user A first step of determining whether or not the stored BIOS update status information indicates updated;
In the first step, it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory does not indicate updated, and BIOS version information indicating a version of the BIOS program and the BIOS program When the BIOS update type information stored in the backup rewritable nonvolatile memory storing the BIOS and the BIOS update type information indicates a downgrade update, it is stored in the backup rewritable nonvolatile memory. A second step of determining whether or not a version indicated by the BIOS version information is older than a version indicated by the BIOS version information stored in the normally used rewritable nonvolatile memory;
In the second step, the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is greater than the version indicated by the BIOS version information stored in the normal use rewritable nonvolatile memory. When old, the whole BIOS program stored in the backup rewritable non-volatile memory or a predetermined portion of the BIOS program stored in the normal use rewritable non-volatile memory is changed to the whole or predetermined portion of the BIOS program. In addition, the BIOS version information stored in the backup rewritable nonvolatile memory is replaced with the BIOS version information stored in the normally used rewritable nonvolatile memory. And-up,
In the second step, the version of the BIOS program indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is the same as the BIOS version information stored in the normal use rewritable nonvolatile memory. The BIOS stored in the backup rewritable non-volatile memory is the whole or a predetermined portion of the BIOS program stored in the normally used rewritable non-volatile memory when it is not older than the BIOS program version shown. The entire program or a predetermined part is replaced, and the BIOS version information stored in the normally used rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. And a fourth step of replacing the serial BIOS version information,
In the first step, the BIOS update state information stored in the normally used rewritable nonvolatile memory is determined not to indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates a downgrade update, the BIOS update status information is updated so that the BIOS update status information stored in the normal use rewritable nonvolatile memory indicates updated. 5 steps,
In the first step, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. A BIOS update method comprising: replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information. A normally used rewritable nonvolatile memory storing a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user A first step of determining whether or not the stored BIOS update status information indicates updated;
In the first step, it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory does not indicate updated, and BIOS version information indicating a version of the BIOS program and the BIOS program When the BIOS update type information stored in the backup rewritable nonvolatile memory storing the BIOS and the BIOS update type information indicates an upgrade update, the information stored in the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. A second step of determining whether the version indicated by the BIOS version information is older than the version indicated by the BIOS version information stored in the normally used rewritable nonvolatile memory;
In the second step, the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is greater than the version indicated by the BIOS version information stored in the normal use rewritable nonvolatile memory. When new, the whole BIOS program stored in the backup rewritable non-volatile memory or a predetermined portion of the BIOS program stored in the normal use rewritable non-volatile memory is changed. And replacing the BIOS version information stored in the normally used rewritable nonvolatile memory with the BIOS version information stored in the backup rewritable nonvolatile memory. And the step,
In the second step, the version of the BIOS program indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is the same as the BIOS version information stored in the normal use rewritable nonvolatile memory. The BIOS stored in the backup rewritable non-volatile memory is the whole or a predetermined part of the BIOS program stored in the normally used rewritable non-volatile memory when the version of the BIOS program is not newer. The entire program or a predetermined part is replaced, and the BIOS version information stored in the normally used rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. A fourth step of replacing the BIOS version information,
In the first step, the BIOS update state information stored in the normally used rewritable nonvolatile memory is determined not to indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates an upgrade update, the BIOS update status information is updated so that the BIOS update status information stored in the normal use rewritable nonvolatile memory indicates updated. And the steps
In the first step, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. A BIOS update method comprising: replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information. A normally used rewritable nonvolatile memory storing a BIOS program executed by the program execution means, BIOS version information indicating the version of the BIOS program, BIOS update status information, and BIOS update type information that can be arbitrarily set by the user A first step of determining whether or not the stored BIOS update status information indicates updated;
In the first step, it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory does not indicate updated, and BIOS version information indicating a version of the BIOS program and the BIOS program When the BIOS update type information stored in the backup rewritable nonvolatile memory storing the BIOS and the BIOS update type information indicates a forced update, the information stored in the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. The whole or predetermined part of the BIOS program replaces the whole or predetermined part of the BIOS program stored in the normally used rewritable nonvolatile memory, and is stored in the backup rewritable nonvolatile memory. BIOS bar In ® down information, a second step of replacing the BIOS version information stored in the normal use rewritable nonvolatile memory,
In the first step, the BIOS update state information stored in the normally used rewritable nonvolatile memory is determined not to indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates forced update, the BIOS update status information is updated so that the BIOS update status information stored in the normal use rewritable nonvolatile memory indicates updated. And the steps
In the first step, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. A BIOS update method comprising: replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information. The BIOS update state stored in the normally used rewritable nonvolatile memory storing the BIOS program, the BIOS version information indicating the BIOS program version, the BIOS update state information, and the BIOS update type information that can be arbitrarily set by the user A first process for determining whether or not the information indicates updated;
In the first process, it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory does not indicate updated, and BIOS version information indicating a version of the BIOS program and the BIOS program When the BIOS update type information stored in the backup rewritable nonvolatile memory storing the BIOS and the BIOS update type information indicates non-update, the normal use rewritable nonvolatile memory stores the The whole or predetermined part of the BIOS program replaces the whole or predetermined part of the BIOS program stored in the backup rewritable non-volatile memory, and is stored in the normally used rewritable non-volatile memory. With BIOS version information A second process of replacing the BIOS version information stored in the rewritable nonvolatile memory for the backup,
In the first process, it is determined that the BIOS update status information stored in the normally used rewritable nonvolatile memory does not indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates non-update, the BIOS update status information is updated so that the BIOS update status information stored in the normally used rewritable nonvolatile memory indicates updated. And processing
In the first process, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. A BIOS update program for causing a computer to execute a fourth process of replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information. The BIOS update state stored in the normally used rewritable non-volatile memory storing the BIOS program, the BIOS version information indicating the BIOS program version, the BIOS update state information, and the BIOS update type information that can be arbitrarily set by the user A first process for determining whether or not the information indicates updated;
In the first process, it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory does not indicate updated, and BIOS version information indicating a version of the BIOS program and the BIOS program When the BIOS update type information stored in the backup rewritable nonvolatile memory storing the BIOS and the BIOS update type information indicates a downgrade update, it is stored in the backup rewritable nonvolatile memory. A second process for determining whether the version indicated by the BIOS version information is older than the version indicated by the BIOS version information stored in the normally used rewritable nonvolatile memory;
In the second process, the version indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is greater than the version indicated by the BIOS version information stored in the normal use rewritable nonvolatile memory. When old, the whole BIOS program stored in the backup rewritable non-volatile memory or a predetermined portion of the BIOS program stored in the normal use rewritable non-volatile memory is changed to the whole or predetermined portion of the BIOS program. A third process of replacing the BIOS version information stored in the normally used rewritable nonvolatile memory with the BIOS version information stored in the backup rewritable nonvolatile memory
In the second process, the version of the BIOS program indicated by the BIOS version information stored in the backup rewritable nonvolatile memory is the same as the BIOS version information stored in the normal use rewritable nonvolatile memory. The BIOS stored in the backup rewritable non-volatile memory is the whole or a predetermined portion of the BIOS program stored in the normally used rewritable non-volatile memory when it is not older than the BIOS program version shown. The entire program or a predetermined part is replaced, and the BIOS version information stored in the normally used rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. A fourth process of replacing the IOS version information,
In the first process, it is determined that the BIOS update status information stored in the normally used rewritable nonvolatile memory does not indicate updated, and the backup rewritable nonvolatile memory is stored in the backup rewritable nonvolatile memory. When the BIOS update type information indicates a downgrade update, the BIOS update status information is updated so that the BIOS update status information stored in the normal use rewritable nonvolatile memory indicates updated. 5 processing,
In the first process, when it is determined that the BIOS update state information stored in the normally used rewritable nonvolatile memory indicates updated, the updated information is stored in the normally used rewritable nonvolatile memory. A BIOS update program for causing a computer to execute a sixth process for replacing the BIOS update type information stored in the backup rewritable nonvolatile memory with the BIOS update type information.

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