Situation description:
When we forget Linuxthe rootpassword, how to reset rootthe password?
Mine is Centos7.9the version.
Start the server
Start the interface, press the up and down keys, select the first one, and then press e.
Enter the editing page
Use the up, down, left, and right keys to move the cursor to the red box in the figure, which is LANG=en_US.UTF-8the back
, and then input: init=/bin/sh. Then, press Ctrl+xExecute Command.
Enter, 单用户模式
after entering this mode, the following is the command line. Enter the command and Enterexecute it .
Enter the commands one by one and press Enter to execute:
mount -o remount,rw /
passwd
After entering the new password,
touch /.autorelabel
exec /sbin/init
it takes a long time to enter the process, about a few minutes.
The system automatically restarts and enters the login page.
Use the password you just set to log in root.