JPH0728632A - Automatic replacing method for operating system and computer system utilizing the same - Google Patents

Abstract

PURPOSE:To reduce the burden on an operator and to improve the maintainability of the computer system by automatically performing the OS replacement and management of the computer system. CONSTITUTION:The computer system which has a data transfer function is used between a main storage device 118 and an auxiliary storage device 102 and the auxiliary storage device 102 is equipped with an OS storage area 103 for storing plural OSs 104-107 including a new OS and a current OS so as to automatically replace the operating system of the computer system. The main storage device 118, on the other hand, is equipped with a loading means 110 which loads one of the OSs 104-107 as an OS controlling the computer system and a management table 108 which manages the OSs 104-107 stored in the auxiliary storage device. When the new OS is installed, the main storage device 118 automatically generate the new OS, stores the new OS in the OS storage area of the auxiliary storage device 120, and also registers its address in the management table 108 at the same time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operating system for controlling the operation of a computer system, and more particularly to an operating system automatic replacing method capable of automatically replacing such operating system,
Also, the present invention relates to a computer system in which an operating system can be automatically replaced by using such a method.

[0002]

2. Description of the Related Art In recent years, a computer system has been remarkably improved in performance with a great increase in its computing power and storage capacity. Along with this, an operating system (hereinafter simply referred to as “O”) that controls the operation of the computer system.
The version number of software such as S) and applications executed thereby is updated (so-called version upgrade) year by year.

Regarding the update of the version number of such software,
For example, according to Japanese Patent Laid-Open No. 62-100834, in a program configuration in which only one version number is given to the entire execution program, it is mixed for some reason when creating a new version number program in the configuration module. It is known to detect old modules that have been deleted. This is because by checking that the version number of the module that composes the new program is not older than the version number of the corresponding module in the old program when replacing the execution program, some of the program may be erroneously deleted when the program is revised. This is to prevent you from going back to the old version.

Further, according to Japanese Patent Application Laid-Open No. 1-217520, there is known a system start-up method in which the internal state of the information processing system before system start-up is read out and sampled especially at system start-up. . In other words, in this method, the dump output and logout operations of the state of each device, which had to be performed manually in the prior art, are forgotten due to insufficient time at startup or operation mistakes, and these important dump outputs and logouts are collected. It is a supplement to forgetfulness.

Further, Japanese Patent Application Laid-Open No. 3-204723 discloses a method particularly suited for program replacement in an electronic exchange system. That is, according to this program replacement method, in a system that is used for a long period of time such as an electronic exchange system, a program to be added / changed in accordance with required service specifications, especially data between old and new programs, Even if the structure is different, it is possible to replace the call during the call and replace the program.

[0006]

The above-mentioned prior art, however, is a computer capable of selecting a plurality of types of software repertoires, although it is intended to partially automate the replacement work of applications of different versions. The current situation is that there is no suggestion of replacing the OS in the system.

Even in the above-mentioned prior art, the OS installation, replacement (exchange) and expansion (addition) in a computer system capable of selecting a plurality of types of software repertoires are complicated and different from each other. Therefore, replacement of the OS requires an operation by an expert. That is, when the OS currently used by the user is replaced by upgrading the OS or the like, the user makes a backup of the current OS such as a magnetic tape as a preliminary preparation, and then prepares the magnetic tape or the like provided by the manufacturer. Install the OS. Then, the optimum OS is automatically generated according to the program package installed in the user's system and the configuration information unique to the system, and the newly generated OS may be overpainted and stored in the storage area of the current OS. Done. After that, the current system is stopped, and the startup process is performed by the new OS that was created.
If the S fails and the startup fails, the current OS that has been saved in advance and has been installed again is installed again to restart the system.

That is, in the above-mentioned conventional technique, when the OS is replaced for the purpose of upgrading the OS, if the system is stopped due to a bug included in the new OS or a mismatch with the system, installation is performed. The new OS has to be restored to the current OS that has been used up to now, which has been saved on the magnetic tape or the like, and therefore, the user's erroneous operation or improper operation in OS management or recovery work must be performed. There is a room for judgment to intervene, and there is a problem that the system down time increases due to the restoration work.

Therefore, in view of the above-mentioned conventional technique, the present invention automatically installs and replaces the OS in the computer system and manages the OS, so that there is no room for the user's erroneous operation or inappropriate judgment to intervene. An object of the present invention is to provide a computer system capable of improving the maintainability by using the method of automatically replacing the operating system.

Further, according to the present invention, a method of automatically replacing an operating system, which is capable of confirming its own operation at the time of automatically replacing the above-mentioned OS and preventing the system operation from being stopped particularly during online operation And to provide a computer system using it.

Further, according to the present invention, when an abnormality is detected by the confirmation of the self-operation, the old OS is automatically
It is an object of the present invention to provide a method for automatically replacing an operating system and a computer system using the method, which can reduce the recovery time at the same time.

Finally, according to the present invention, when an abnormality is detected by confirming the above-mentioned self-operation, the abnormality is analyzed in detail later to make it possible to elucidate the cause, so that the maintainability is excellent. An object is to provide a method of automatically replacing an operating system and a computer system using the method.

[0013]

In order to achieve the above object, according to the present invention, at least an arithmetic processing unit, a main storage unit, and an auxiliary storage unit are provided, and the main storage unit and the auxiliary storage unit are provided. In a computer system having a data transfer function between and, an automatic operating system replacement method capable of automatically replacing the operating system is
The new OS is automatically generated, and the new OS automatically generated
Is stored in the OS storage area of the auxiliary storage device, and
A method of automatically replacing an operating system has been proposed in which an address on the auxiliary storage device in which the new OS is stored is registered in a management table on the main storage device.

Further, in order to achieve the above object, a computer system capable of automatically replacing an operating system with at least an arithmetic processing unit, a main storage unit and an auxiliary storage unit, and In a computer system having a data transfer function between the main storage device and the auxiliary storage device, the auxiliary storage device includes an OS storage area for storing a plurality of OSs including a new OS and a current OS, Further, the main storage device has means for loading an OS stored in the OS storage area of the auxiliary storage device, and the OS of the auxiliary storage device.
There has been proposed a computer system including a management table for managing an OS stored in a storage area.

In order to achieve another object of the present invention,
In the above-described automatic replacement method of operating system and the computer system using the same, there has been proposed one that further performs a self-diagnosis function.

Further, in order to achieve another object of the present invention, there has been proposed a method for performing so-called restoration processing in the above-described automatic replacement method of operating system and computer system using the same.

In addition, in order to achieve still another object of the present invention, in the above-described method for automatically replacing an operating system and a computer system using the same,
It is proposed to store the diagnosis result by the self-diagnosis function.

[0018]

That is, according to the method of automatically replacing the operating system of the present invention and the computer system using the same, a plurality of OSs including the installed new OS are stored in the OS storage area of the auxiliary storage device, and at the same time. By providing a management table for managing the plurality of OSs in the main storage device, a so-called generation management function is performed, and there is no room for intervention by a user's erroneous operation or improper judgment.
By utilizing this, it becomes possible to improve the maintainability of the computer system.

Furthermore, a new OS installed
By automatically performing the self-diagnosis function of the new OS, when the current OS is automatically replaced with the new OS, a fault such as a bug or the like and the matching with the system are confirmed before the system is started up by the new OS, so that there is a defect. Since it is possible to prevent the computer system from operating in the new OS, it is possible to prevent the system operation from being stopped during the online operation by the defective new OS.

Further, by proposing a method for automatically performing so-called restoration processing in the above-mentioned automatic replacement method of operating system and the computer system using the same, as a result of the self-diagnosis, a new defective O
Processing when it is found to be S, that is, new OS
In place of the above, by automatically performing a return to the proven current OS, as in the above, there is no room for user's erroneous operation or improper judgment to intervene, and a method for automatically replacing the operating system is used. Therefore, the maintainability of the computer system can be improved.

Finally, the self-diagnosis result of the new OS is automatically saved, especially when it is determined that the new OS is defective, so that the user's erroneous operation or improper judgment may result. A method for automatically replacing an operating system with excellent maintainability and a computer using the same, by making it possible to use it for the subsequent analysis and elucidation of the cause of defects in the new OS without forgetting the records. It becomes possible to provide the system.

[0022]

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. First, FIG. 1 shows an outline of the overall configuration of a computer system that utilizes the automatic operating system replacement method of the present invention. That is, this computer system basically has a central processing unit (CPU) 101 and an auxiliary storage device 102.
And a main storage device 118. A data transfer function is provided between the auxiliary storage device 102 and the main storage device 118, and although not shown in this figure, the computer system further includes a CP.
To display the processing contents and input / output from U101,
For example, a display device including a CRT or the like, or an input device such as a keyboard or a mouse for inputting a command from an operator is also included.

The auxiliary storage device 102 is provided with an OS storage area 103 in its storage area, and a new O
New OS storage area 104 for storing S, current OS storage area 105 for storing current OS, old OS storage area 106 for storing old OS, and diagnostic OS for storing diagnostic OS The OS storage area 107 is provided.
The auxiliary storage device 102 is configured by a storage medium, such as a hard disk, separately from a main storage device described in detail later.

The main storage device 115 stores a management table 108 for storing the addresses of the new OS, the current OS and the old OS in the auxiliary storage device 102, and diagnoses the new OS to determine whether or not it should be loaded. A self-diagnosis start flag 109 for loading the OS, an OS loading unit 110 for loading an OS into the main memory 118 from the new OS, the current OS and the old OS stored in the auxiliary memory 102, The OS loading means 1
O for controlling the computer system by the function of 10
An OS storage area 112 for storing S is provided. The main storage device 115 further includes a self-diagnosis program 113 for diagnosing the OS loaded in the system to determine whether or not the OS should be loaded, and an OS based on the OS when the self-diagnosis program 113 detects an abnormality. Recovery processing program 1 for recovering to other OS
14, an OS replacement program 115 for executing the OS replacement, and a new OS generation subprogram 11 for generating a new OS accompanying the OS replacement
6 and an OS management program 117 for managing the OS. Also, the above OS
The loading means 110 is internally provided with a self-diagnosis start flag detecting means 111 for detecting the self-diagnosis start flag.

Next, regarding the automatic replacement method of the operating system of the present invention in the computer system having the above-mentioned configuration, referring to the flowchart of the present invention of FIG. 2, at the same time, the automatic replacement method of the conventional operating system shown in FIG. It will be described in detail by comparing these with reference to.

First, in the conventional OS replacement work, as shown in FIG. 6, the user makes a backup of the current OS on the auxiliary storage device in advance (201), and then installs the OS (202). And conventionally, the new OS generation subprogram is operated by the operator (user).
Was manually started to generate a new OS (203), and the new OS was overpainted and saved in the current OS storage area. Therefore, the backup of the current OS is left to the consciousness of the user, and there is a room for an erroneous operation or an erroneous judgment of the operator (user) to intervene during the replacement work.

On the other hand, according to the computer system of the present invention, as shown in FIG. 2, the OS replacement program 115 and the new OS generation subprogram 116 are stored in the main memory 118, and , A plurality of OSs (that is, a new OS and a current OS) on the auxiliary storage device 102.
OS storage area 10 capable of storing (S, old OS)
3 is provided. Therefore, in the OS replacement flowchart of the present invention, as shown in FIG. 2, first, when the OS is installed by the user (30
1) At that point, the OS replacement program 115 on the main storage device 118 operates, and as a result, the new OS generation subprogram 116 on the main storage device 118 also operates.
Is started (303). After that, the new OS on the main storage device 118 is stored in the new OS storage area 10 on the auxiliary storage device 102.
4 will be stored (304). In the present invention, the above two steps (303) and (304) are collectively referred to as a generation management function (302a).

As described above, the generation management function (302
In a), since the new OS is automatically generated and the current OS is automatically saved in the auxiliary storage device 102 at the same time, it is necessary for the user to be aware of the backup of the current OS as in the conventional case. Disappear. In addition, the user does not need to manually start the new OS generation subprogram 116, which reduces the risk of an erroneous operation by the operator (user) or an erroneous judgment.

Now, returning to the conventional OS replacement work shown in FIG. 6, conventionally, after saving the overcoat on the current OS storage area 105 of the new OS, the new OS generated is started up by manual input. It will start (205), but in this case,
The new OS was put into the system without any guarantee that it would match the system. Therefore, in the unlikely event that a failure occurs (206), the above steps (20)
In the current OS that has been backed up in 1), it is necessary to manually restart (207) and start online again (208) in the existing OS, and again, due to erroneous operation by the operator, There was room for misjudgment.

Returning to FIG. 1 again, in the OS replacement method of the present invention, following the generation management function (302a) described above,
A self-diagnosis start flag 109 provided on the main storage device 118 and indicating the effectiveness of operation confirmation, an OS loading means 110, a self-diagnosis start flag detection means 111 provided therein, and an OS storage area. 112,
Furthermore, by the function of the self-diagnosis program 113, etc.,
The self-diagnosis function that automatically performs self-diagnosis is performed. That is, the generation management function 302a automatically generates a new OS (303) and saves the current OS (30).
4), the self-diagnosis program 113 of the new OS is activated to turn on the self-diagnosis start flag 119 (3
05), self-diagnosis of whether or not the new OS matches the system (306). That is, the self-diagnosis start flag 109 is turned on to show the effectiveness of the self-operation confirmation.

As a result of this self-diagnosis, there is no problem (OK).
If it is determined that the new OS is started up (3
07). On the other hand, if the new OS has some problem with the system (NG), the flow terminates the startup of the new OS (309). As described above, since the OS replacement method of the present invention has the self-diagnosis function, the new OS can be loaded into the online system with high reliability. Further, in the step (307) of continuing the startup of the new OS, the OS loading means 110 of the main storage device 118 searches the management table 108 for the name of the new OS, and if found, then the auxiliary storage device. The address on 102 is read, and the new OS is loaded into the OS storage area 112 on the main memory 118. Therefore, the new O
The instruction to start the start-up by S does not need to be instructed by the operator as in the conventional case, but is automatically performed, and there is no room for operator's erroneous operation or misjudgment, and the risk is reduced. Become.

After that, when the startup of the new OS succeeds in the step (307) of continuing the startup of the new OS, the OS management program 117 of the main memory 118 is activated and only the OS name of the management table 108 is changed. To do. That is, the current OS is changed to the old OS and the new OS is changed to the current OS (308). In this case, since the address in the management table 108 is not changed, the one that was in the new OS storage area 104 in the auxiliary storage device 102 was the new OS before the startup was successful. Is the current OS storage area in which is stored. This is also the OS storage area 103 for storing a plurality of OSs on the auxiliary storage device 102.
By providing the OS, the burden on the OS management of the user can be reduced. Such an OS management program 1
The processing performed by 17 is also part of the above generation management function.

On the other hand, as described above, in the self-diagnosis step (306), if the new OS has any problem with the system (NG), the flow terminates the startup of the new OS (309). , A self-diagnosis start flag detecting means 111 in the OS loading means 110 on the main memory 118
However, after confirming that the self-diagnosis start flag 109 is set, the proven current OS is loaded into the OS storage area 112 of the main storage device 118, and then the startup is automatically performed (310). The process of stopping the startup of these new OSs (309) and starting the startup of the current OS (310) is defined as the recovery function (311).

After that, the OS management program 117 of the main memory 118 changes the name of the OS on the management table 108. In this case, the new OS is erased after saving the diagnosis result (312). This is also an OS storage area 1 for storing four OSs of the new OS, the current OS, the old OS, and the diagnostic OS on the auxiliary storage device 102.
By providing 03, generation management of a plurality of OSs has become possible (so-called generation management function 302b). That is, the OS management program 117 sets the new OS diagnosis result to O.
It is saved in the diagnostic OS 107 in the S storage area 103, and the name and the address of the auxiliary storage device 102 are added to the management table 108. Further, by saving the above-mentioned diagnosis result in the diagnosis OS storage area 107 in the auxiliary storage device 102, it becomes possible to later investigate the reason why the new OS did not start up. After that, the recovery processing program 114 stored in the main storage device 118 is activated, the self-diagnosis start flag 109 is turned off (313), and online start is started (314).

Next, the details of the processing of the above generation management function (302a) will be described with reference to FIG. When the OS is installed, the OS replacement program 115 stored in the main storage device 118 runs (40
1) The new OS generation subprogram 116 is activated.
This new OS creation subprogram creates a new OS (3
03), the generated new OS is stored in the new OS storage area of the auxiliary storage device 102 (403), and the OS name and the address of the new OS storage area are stored in the OS management table 108 on the main storage device 118. Register (404).

As described above, there is no room for the operation by the user or the like from the time when the OS is installed to the time when the new OS is stored, and the user only needs to insert the cartridge tape and activate the OS replacement program.

FIG. 4 shows another generation management function (30
Details of the processing of 2b) will be described. Incidentally, conventionally, the OS loading means 110 is made to register the type of the OS loaded into the OS storage area 112 on the main storage device 118 in the OS management table 108.

On the other hand, in the OS replacement method of the present invention, the OS management program 117 on the main storage device 118 is used.
Reads the table created by the OS loading means 110, and based on the information in the read table, the OS
The loading unit 110 determines the attribute of the OS loaded in the main storage device 118. That is, the OS loading unit 110 determines whether the new OS has been loaded (501).

As a result of the judgment, if the OS is the new OS (that is, "Y"), the OS management program 117 changes the name of the current OS in the management table 108 to the name of the old OS and the name of the new OS. The name is changed to OS (502). In this way, since only the name is changed, the address on the auxiliary storage device 102 is not changed. Therefore, the new OS stored in the new OS storage area 104 before the self-diagnosis is "current". The current OS managed under the name "OS" and stored in the current OS storage area 105 will be managed under the name "old OS".
That is, there is no movement between the storage areas on the auxiliary storage device 102. On the other hand, when the attribute of the read OS is not the new OS (that is, “N”), the OS management program 117 on the main storage device 118 changes the name “new OS” in the management table 108 to “diagnostic OS”. The name is changed to "" (503).

FIG. 5 shows details of the self-diagnosis function described above. First, it is determined whether the self-diagnosis start flag 109 on the main storage device 118 is ON (601). Normally, since the self-diagnosis start flag 109 is set OFF, the new OS startup flag is ON. The conditional statement (601) indicating whether or not to proceed to “No”. As a result, the self-diagnosis start program 113 causes the self-diagnosis start flag 10
9 is turned on (602), and then it is determined by the OS loading means 110 whether or not the new OS has been loaded on the main storage device 118 (603). Here, when the loading of the new OS has failed (No), the process returns to the above processing (601), and the self-diagnosis start flag 109 is returned.
See the state of. In this case, since the self-diagnosis start flag 109 is turned on, the result of the self-diagnosis is set to "NG (impossible)" (608).

On the other hand, if the loading is successful in the above step (603) (Yes), the startup processing is performed by linking to the basic control OS which has the functions of interrupt processing and input / output control, and this startup processing is executed. Determine success or not (6
04). When this process has failed (No), the process returns to the above process (601) and the self-diagnosis result is set to "NG (not possible)", as described above (608).

The above startup processing (604) is successful (Yes
Then, whether or not the initialization process of each software repertoire selected for each user has succeeded is determined (605). If the result of this determination is that it has failed (No), processing returns to the above processing (601), and the result of self-diagnosis is set to “NG (impossible)” (608). On the other hand, if it is determined to be successful (Yes), it is further determined whether or not the startup process of each software repertoire is successful (606). As a result, if it is determined to be successful (Yes), The result of self-diagnosis is set to "OK (OK)" (607). On the other hand, if it is determined to be unsuccessful (No), the process returns to the above process (601) and the self-diagnosis result is set to “NG (impossible)” (608).

As described above, the self-diagnosis program 113 on the main memory 118, the OS loading means 110,
By setting the self-diagnosis start flag detection means 11 and the self-diagnosis start flag 114 in the OS loading means 110, the self-diagnosis of the new OS becomes possible, thereby preventing the system from being stopped after the online start. It will be possible.

[0044]

As is apparent from the above detailed description, according to the method of automatically replacing the operating system of the present invention, and the computer system using the method,
When replacing an OS in a computer system, the OS that was conventionally left to the user's consciousness and judgment, such as making a backup of the current OS used by the user so far
Significantly reduces the user's burden on the management side, and at the same time, new
This makes it possible to reliably and automatically execute the S replacement operation, and eliminate the possibility of intervention by a user's erroneous operation or improper determination, and improve its maintainability.

Further, according to the above automatic operating system replacement method of the present invention and the computer system using the same, a self-diagnosis function for automatically performing self-diagnosis after generation of a new OS is provided. Due to the new OS
Prior to the start of the online operation, the system compatibility is automatically determined to prevent a stop during the online operation, and a safe and reliable automatic OS replacement operation can be performed without requiring an expert.

Furthermore, when an abnormality is detected by the self-diagnosis function, the system automatically recovers to the current operating system with a proven track record, so that the system downtime is minimized even when the new OS does not match the system. The maximum utilization of the computer system can be achieved.

Further, when an abnormality is detected by checking the above-mentioned self-operation, this is stored, and it is possible to examine and analyze the abnormality in detail later, thereby maintaining the computer system. It is possible to improve the property.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a computer system utilizing an operating system automatic replacement method of the present invention.

FIG. 2 is a flow chart showing the flow of the entire processing of the above-mentioned operating system automatic replacement method.

3 is a flowchart showing a processing flow of one generation management function of the processing of FIG.

FIG. 4 is a flowchart showing a processing flow of the other generation management function of the processing of FIG.

5 is a flowchart showing a flow of processing of a self-diagnosis function in the processing of FIG.

FIG. 6 is a flowchart showing an example of a conventional operating system automatic replacement method for explaining the operation of the operating system automatic replacement method of the present invention of FIG. 2 in comparison.

[Explanation of symbols]

 101 Central Processing Unit (CPU) 102 Auxiliary Storage Device 103 OS Storage Area 104 New OS Storage Area 105 Current OS Storage Area 106 Old OS Storage Area 107 Diagnostic OS Storage Area 108 Management Table 109 Self-Diagnosis Start Flag 110 OS Loading Means 111 Self-diagnosis start flag detection means 112 OS storage area 113 Self-diagnosis program 114 Recovery processing program 115 OS replacement program 116 New OS generation subprogram 117 OS management program 118 Main storage device

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Shigeru Ogawa 5-2-1 Omika-cho, Hitachi City, Ibaraki Prefecture Hitachi Ltd. Omika Factory, Hitachi Ltd. (72) Koji Kobayashi 5-chome, Omika-cho, Hitachi City, Ibaraki Prefecture No. 1 Incorporated company Hitachi Ltd. Omika Plant (72) Inventor Shinya Kashimura 5-2-1, Omika-cho, Hitachi City, Ibaraki Prefecture Incorporated company Hitachi Ltd. Omika Plant (72) Inventor Hajime Fujimoto Omika Hitachi City, Ibaraki Prefecture 5-2-1, Machi, Hitachi Process Computer Engineering Co., Ltd. (72) Inventor Teruyuki Yasunaga 5-2-1, Omika-cho, Hitachi City, Ibaraki Prefecture (72) Inventor, Process Computer Engineering Co., Ltd. (72) Shigenori Kaneko, Ibaraki 2-1 Omika-cho, Hitachi City, Hitachi, Ltd. Omika Omika Co., Ltd. In the factory (72) Inventor Shuji Nishiyama 52-1 Omika-cho, Hitachi-shi, Ibaraki Hitachi Ltd. Omika factory

Claims (13)

[Claims] 1. A computer system comprising at least an arithmetic processing unit, a main storage unit, and an auxiliary storage unit, having a data transfer function between the main storage unit and the auxiliary storage unit. A method of automatically replacing an operating system that can be replaced with a new OS is such that, after the new OS is installed, the new OS is automatically created and the automatically created new OS is stored in the OS storage area of the auxiliary storage device. In addition, the operating system automatic replacement method is characterized in that the address on the auxiliary storage device in which the new OS is stored is registered in the management table on the main storage device. 2. The method for automatically replacing an operating system according to claim 1, further comprising: automatically generating the new OS, and then performing self-diagnosis processing for confirming that the new OS matches the system. A method for automatically replacing the operating system. 3. The operating system automatic replacement method according to claim 2, wherein the result of the self-diagnosis is:
A method for automatically replacing an operating system, characterized in that, when it is determined that the installed new OS has no fault, the system is automatically started up by the automatically generated new OS. 4. The method for automatically replacing an operating system according to claim 3, wherein after the system is automatically started by the new OS, the new OS stored in the OS storage area of the auxiliary storage device becomes the current OS, and , Replaces the current OS stored in the OS storage area of the auxiliary storage device with the old OS
A method for automatically replacing an operating system, which is characterized by converting the name to. 5. The operating system automatic replacement method according to claim 2, wherein the result of the self-diagnosis is:
A method for automatically replacing an operating system, characterized in that, when it is determined that the installed new OS has some trouble, the automatic startup of the system by the automatically created new OS is stopped. 6. The method for automatically replacing an operating system according to claim 5, wherein the result of the self-diagnosis is stored in one of the main storage device and the auxiliary storage device when the automatic startup of the system by the new OS is stopped. A method for automatically replacing an operating system, characterized by: 7. The automatic replacement method for an operating system according to claim 6, wherein the automatically generated new OS is erased after the self-diagnosis result is saved. 8. The method for automatically replacing an operating system according to claim 5, wherein after the automatic startup of the system by the new OS is stopped, the automatic startup of the system by the current OS is performed instead of the new OS. A method for automatically replacing an operating system that is characterized by recovery. 9. A computer system capable of automatically exchanging operating systems, comprising at least an arithmetic processing unit, a main storage device, and an auxiliary storage device, and the main storage device and the auxiliary storage device. In a computer system having a data transfer function with a storage device,
The auxiliary storage device stores a plurality of O including the new OS and the current OS.
An OS storage area for storing S is provided, and the main storage device has means for loading the OS stored in the OS storage area of the auxiliary storage device, and is stored in the OS storage area of the auxiliary storage device. A computer system comprising a management table for managing the created OS. 10. The computer system according to claim 9, wherein the main storage device automatically generates the new OS when installing the new OS, and stores the generated new OS in the OS storage area of the auxiliary storage device. A computer system having a function. 11. The computer system according to claim 10, wherein the main storage device has a function of performing a self-diagnosis process for confirming that the automatically generated new OS matches the system. A computer system characterized by that. 12. The computer system according to claim 11, wherein at least one of the main storage device and the auxiliary storage device has an area for storing a result of the self-diagnosis processing. Characteristic computer system. 13. The computer system according to claim 11, wherein the main storage device and the auxiliary storage device are individually and separately arranged as separate devices.