After the centos system is shut down abnormally and started, the partition information will be damaged and the system cannot be entered normally
If it prompts that a certain partition is abnormal, You can enter the root password and press Enter
(Recommended tutorial: centos usage tutorial)
Repair the partition
Then Follow the above tips to repair the problematic partition. fsck /dev/mapper/xxx/x
Then confirm that the system has started to repair. He may have many prompts about partition failures. Just continue repairing
After a few confirmations, return to the original command line as shown in the figure. Indicates that the repair is completed
Restart the system normally and then restart the operating system normally and enter reboot
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