Linux fault recovery-general Linux technology-Linux technology and application information. For details, refer to the following section. 1. Solution to forgetting the root password
1. boot to the grub menu, move the cursor to the option to boot, press e, select the kernel option, then press e, add 1 at the end, and then press esc, press B to enter the single-user mode
2. After Entering linux, the password is not required to be the root identity. vi/etc/shadow will delete the second field of the line where root is located, save and restart.
3. Do not forget to reset the root password after restarting.
2. Unable to start up due to a set error.
It is usually because the input of the/etc/fstab file is incorrect, and the partition cannot be mounted successfully.
1. Enter the single-user mode.
2. Use mount? N? O remount, rw/re-mount the root directory. Modify and save the content in fstab, and restart.
3. An error occurs due to abnormal shutdown.
File System error occurs due to abnormal shutdown, such as power failure.
1. Enter the single-user mode.
2. Execute fsck/dev/hdax for the error partition as the Partition Number. When the system detects an error, clear y/n selects y to solve the problem. If not, back up the file and reinstall the system.
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