Method for preventing restart failure of Linux system

Abstract

The invention relates to a method for preventing restart failure of a Linux system. According to the method, in a system startup stage, a root file system in a CFast card is copied, and the copied root file system is used for starting the system. Based on an existing storage medium of the system, a nonvolatile storage medium is additionally adopted for recording logs, so that the root file systemand log files of the system are recorded in different storage mediums. By adopting one or two methods, the writing chances of the system can be reduced through a virtual hard disk technology, the diskwriting damage probability is reduced, and the problem of influence on system startup and automatic recovery due to crash of the file system caused by power failure of the system is solved. By addingthe separate storage medium for recording the log files, the log recording capability of the system is improved, and any original program does not need to be modified. Even if an SSD is damaged, a business is not interrupted; and only the log nonvolatile storage performance is lost; and the logs are additionally stored in a memory.

Description

technical field [0001] The present disclosure relates to an operating system, and in particular, relates to a method for preventing restart failure of a Linux system. Background technique [0002] In the prior art, the ssd hard disk is directly used to install the distribution version of the linux system. After the Linux system is installed in this way, the system log generated when the system is running can only be recorded locally. However, the local machine needs to record the log on the disk through the file system. When the write operation of the file system has not synchronized the log to the disk in time, the file system will be inconsistent. If the power is cut off at this time, the file system check may fail during the system startup phase, resulting in the failure of the Linux system to start normally and affecting business operations. At the same time, due to the existence of a large number of log write operations, the probability of disk write failure will incre...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the ssd hard disk is directly used to install the distribution version of the linux system. After the Linux system is installed in this way, the system log generated when the system is running can only be recorded locally.

However, the local machine needs to record the log on the disk through the file system. When the write operation of the file system has not synchronized the log to the disk in time, the file system will be inconsistent.

If the power is cut off at this time, the file system check may fail during the system startup phase, resulting in the failure of the Linux system to start normally and affecting business operations

At the same time, due to the existence of a large number of log write operations, the probability of disk write failure will increase, and the system will not operate normally.

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