TW201301018A - System and method for recovering a master boot record of a disk - Google Patents

Abstract

The present invention provides a system for recovering a master boot record (MBR) of a disk. The system includes a detection module, a reading module, a storing module, and a transferring module. The detection module detects a count flag of a basic input output system (BIOS) of a computer if the computer is power on self tested (POST). The reading module reads the MBR in a magnetic domain of the disk if the count flag denotes that the computer is started for the first time. The storing module stores the MBT to a baseboard management controller (BMC). The transferring module transfers the MBR stored in the BMC and recovers the MBR to the magnetic domain if a value of an end flag of the MBR is not AA55.

Description

Hard disk master boot record repair system and method

The invention relates to a management system and method for a hard disk master boot record, in particular to a repair system and method for a hard disk master boot record.

After the computer power turns on self-test, the master boot record (MBR) is the first recorded disk location. The 1 magnetic zone of the 0 track of the hard disk is called MBR, and its size is 512 bytes. It does not belong to any operating system, nor can it be read by the disk operation command provided by the operating system. When the MBR is destroyed by a virus or destroyed by something else, the computer has no way to enter the operating system. It is common practice today to back up the MBR to external storage and restore it when needed. However, such recovery requires localization of external storage and access to information from external storage, which takes a lot of time and is complicated to operate.

In view of the above, it is necessary to provide a repair system and method for the hard disk master boot record, which can effectively repair the hard disk master boot record.

A repair system for a hard disk master boot record, the system comprising: an inspection module, wherein when the computer power is turned on self-test, the value of the BIOS boot count flag is checked; and the read module is configured to be used according to the boot count flag The value determines that the computer is the first time to open, reads the hard disk master boot record from the corresponding magnetic area of the computer hard disk; the storage module is used to store the read hard disk master boot record to the baseboard management controller And calling module for calling the hard disk master boot record stored in the baseboard management controller when the value of the end flag of the hard disk master boot record is not AA55, and restoring the called hard disk master boot record Go to the corresponding magnetic area of the hard drive.

A method for repairing a hard disk master boot record, the method comprising: an checking step of viewing a value of a BIOS boot count flag when the computer power turns on a self test; and a reading step of determining the value according to the value of the boot count flag When the computer is first turned on, the hard disk master boot record is read from the corresponding magnetic area of the computer hard disk; the storing step is to store the read hard disk master boot record into the baseboard management controller; and the calling step is when the hard When the value of the end flag of the disc master start record is not AA55, the hard disk master boot record stored in the baseboard management controller is called, and the called hard disk master boot record is restored to the corresponding magnetic area of the hard disk.

Compared with the prior art, the repair system and method for the hard disk master boot record can use the BMC to back up the hard disk master boot record, and effectively repair the master boot record of the hard disk when the hard disk is damaged, so that The computer can enter the system normally.

As shown in FIG. 1, it is an operating environment diagram of a preferred embodiment of the repair system for the hard disk master boot record of the present invention. The repair system 10 of the hard disk master boot record runs in the computer 1. The computer 1 includes a baseboard management controller (BMC) 11, a basic input output system (BIOS) 12, and an operating system 13. The hard disk master boot record repair system 10 repairs the hard disk master boot record (MBR) 14 when the hard disk (not shown) is destroyed, and the hard disk master boot record 14 is stored. In the 0 cylinder 0 head 1 magnetic area of the hard disk. The hard disk master boot record 14 includes an end flag, and when the value of the end flag is AA55, the operating system 13 can be normally started. The BIOS 12 further includes a power-on counter flag indicating whether the computer 1 is turned on for the first time after the hard disk master boot record 14 is destroyed. In the preferred embodiment, the boot count flag has a value of 0. It means that the computer 1 is turned on for the first time. When the value of the power-on counter flag is 1, it means that the computer 1 is not turned on for the first time.

As shown in FIG. 2, it is a functional module diagram of the repair system 10 of the hard disk master boot record of FIG. The repairing system 10 of the hard disk master boot record includes: an inspection module 100, a first determining module, a reading module 102, a storage module 103, a second determining module 104, a starting module 105, and a calling module. 106 and restart module 107. The module is a software program segment with a specific function, and the software is stored in a computer readable storage medium or other storage device, and can be executed by a computer or other computing device including a processor, thereby completing the repair of the hard disk master boot in the present invention. Record the workflow of 14.

The inspection module 100 is used to check the value of the BIOS 12 power-on counter flag when the computer 1 powers on self-test.

The first determining module 101 is configured to determine whether the computer 1 is turned on for the first time according to the value of the power-on counting flag of the BIOS 12. The first opening refers to the first time after the hard disk master boot record 14 is destroyed.

When it is determined that the computer 1 is turned on for the first time, the reading module 102 is configured to read the hard disk master boot record 14 from the corresponding magnetic area of the hard disk. In this embodiment, the corresponding magnetic region refers to the 0 cylinder 0 magnetic head 1 magnetic region of the hard disk.

The storage module 103 is configured to store the read hard disk master boot record 14 into the BMC 11.

When it is determined that the computer 1 is not turned on for the first time, the second determining module 104 is configured to determine whether the value of the end flag of the hard disk master boot record 14 is AA55. If the value of the end flag is AA55, the startup module 105 activates the operating system 13.

If the value of the end flag is not AA55, the calling module 106 is configured to call the hard disk master boot record 14 stored in the BMC 11, and restore the called hard disk master boot record 14 to the corresponding magnetic area of the hard disk. in. Reverting to the corresponding magnetic zone of the hard disk means storing the hard disk master boot record 14 in the corresponding magnetic zone.

The restart module 107 restarts the computer 1 after the hard disk master boot record 14 is restored.

As shown in FIG. 3, it is a flowchart of a preferred embodiment of the repair method for the hard disk master boot record of the present invention.

In step S30, when the computer 1 powers on self-test, the check module 100 checks the value of the boot count flag of the BIOS 12.

In step S31, the first determining module 101 determines whether the computer 1 is turned on for the first time according to the value of the boot count flag of the BIOS 12. This first opening refers to the first opening after the hard disk master boot record 14 is destroyed. If the computer 1 is turned on for the first time, step S32 is performed. If the computer 1 is not turned on for the first time, step S34 is performed.

In step S32, the reading module 102 reads the hard disk master boot record 14 from the corresponding magnetic area of the hard disk. In this embodiment, the corresponding magnetic region refers to the 0 cylinder 0 magnetic head 1 magnetic region of the hard disk.

In step S33, the storage module 103 stores the read hard disk master boot record 14 in the BMC 11.

In step S34, the second determining module 104 determines whether the value of the end flag of the hard disk master boot record 14 is AA55. If the value of the end flag of the hard disk master boot record 14 is AA55, step S35 is performed. If the value of the end flag of the hard disk master boot record 14 is not AA55, step S36 is performed.

In step S35, the startup module 105 activates the operating system 13.

In step S36, the calling module 106 calls the hard disk master boot record 14 stored in the BMC 11 and restores the called hard disk master boot record 14 to the corresponding magnetic area of the hard disk.

In step S37, the restart module 107 restarts the computer 1.

It should be noted that the above embodiments are only intended to illustrate the technical solutions of the present invention and are not intended to be limiting, and the present invention will be described in detail with reference to the preferred embodiments thereof The technical solutions are modified or equivalently substituted without departing from the spirit and scope of the technical solutions of the present invention.

1. . . computer

10. . . Hard disk master boot record repair system

11. . . Baseboard management controller

12. . . Basic input and output system

13. . . working system

14. . . Hard disk master boot record

100. . . Inspection module

101. . . First judgment module

102. . . Read module

103. . . Storage module

104. . . Second judgment module

105. . . Startup module

106. . . Call module

107. . . Restart module

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a diagram showing the operational environment of a preferred embodiment of a repair system for a hard disk master boot record of the present invention.

2 is a functional block diagram of the repair system 10 of the hard disk master boot record of FIG.

3 is a flow chart showing the operation of a preferred embodiment of the method for repairing the hard disk master boot record of the present invention.

10. . . Hard disk master boot record repair system

100. . . Inspection module

101. . . First judgment module

102. . . Read module

103. . . Storage module

104. . . Second judgment module

105. . . Startup module

106. . . Call module

107. . . Restart module

Claims (8)

A repair system for a hard disk master boot record, the system comprising:
Check the module, when the computer power is turned on self-test, check the value of the BIOS boot count flag;
a reading module, configured to read a hard disk master boot record from a corresponding magnetic area of the computer hard disk when determining that the computer is turned on for the first time according to the value of the power-on counting flag;
a storage module for storing the read hard disk master boot record in the baseboard management controller; and calling the module for calling the storage on the substrate when the value of the end flag of the hard disk master boot record is not AA55 Manage the hard disk master boot record in the controller and restore the recalled hard disk master boot record to the corresponding disk of the hard disk. A repairing system for a hard disk master boot record according to claim 1, wherein the corresponding magnetic region of the hard disk refers to a 0 cylinder 0 magnetic head 1 magnetic region of the hard disk. The repairing system of the hard disk master boot record according to claim 1, wherein the system further comprises: a booting module, configured to start the computer when the value of the end flag of the hard disk master boot record is AA55 working system. The repair system of the hard disk master boot record described in claim 1 of the patent scope, the system further comprising: a restart module, wherein the computer is restarted after the hard disk master boot record is restored. A method for repairing a hard disk master boot record, the method comprising:
Check the steps to check the value of the BIOS boot count flag when the computer power turns on the self test.
a reading step of, when determining that the computer is turned on for the first time according to the value of the boot count flag, reading a hard disk master boot record from a corresponding magnetic area of the computer hard disk;
a storing step of storing the read hard disk master boot record to the baseboard management controller; and calling the step of calling the hard memory stored in the baseboard management controller when the value of the end flag of the hard disk master boot record is not AA55 The disc master initiates the recording and restores the called hard disk master boot record to the corresponding magnetic area of the hard disk. The method for repairing a hard disk master boot record according to claim 5, wherein the corresponding magnetic region of the hard disk refers to a 0 cylinder 0 head 1 magnetic region of the hard disk. The method for repairing a hard disk master boot record according to claim 5, wherein the method further comprises:
The startup step starts the operating system of the computer when the value of the end flag of the hard disk master boot record is AA55. The repair method of the hard disk master boot record described in claim 5, after the calling step includes: restarting the step, restarting the computer.