What should I do if Linux cannot start?

What should I do if Linux cannot start?

If you accidentally delete or change a file in your Linux and cause Linux to fail to start, the following will introduce how to restart Linux.

Method 1: Linux enters single-user mode

Press e before starting the operating system and loading the kernel. If an option appears, select the first one until the following figure appears:

Press the up and down arrow keys to select the second thing named kernel...., and then press e to see the picture below (you may think it is different, but don't worry) ：

Add single or Linux single or 1 or S

directly at the end and press Enter to save, then press b to run

Recommendation: "Linux Tutorial"

Method 2: Rescue Mode 1. If you have entered single-user mode, then the next method can be regarded as entertainment. If you can't even enter single-user mode, the next step is to enter rescue mode 1 (of course there will be 2):

Follow step 2 of method 1, and add at the end: init=/bin/ bash

Then press Enter to save, press b to run

At this time, you will find that the system has entered (if not, this method 2 is not suitable for you, please skip it), if you enter, you will find this The system will be in read-only mode

If your system was normal the last time it was restarted, then jump directly to step 5. This step is fsck to check the system:

fsck -a /dev/hdaX When processing the root partition, Bar:

mount /proc

mount / -o remount,rw

swapon -a Open any swap partition

source /etc/profile Load user environment

After repairing the system, remount the system as ro, and you can restart safely .

mount / -o remount,ro

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