Please follow the code provided below to modify
(The results of the personal test below!)
Boot the Linux system to enter the boot screen, select: CentOS Linux(3.10.0-693.e17.x86_64)7 (Core), press the letter "E" key to enter the Linux kernel mode for editing.
After entering the Linux kernel mode, find the line starting with Linux16, enter at the end: rd.break, then hold down Ctrl+x to boot to rescue mode
code show as below:
mount -o remount rw /sysroot
chroot /sysroot
LONG=C
passwd
touch /.autorelabel makes SELinux take effect. If it is not executed, the modified password will not take effect.
exit
Remember: you need to exit the sh-4.2# mode before you can use the reboot command to restart
The second method:
Find a line of Linux16, find the ro character, and modify it to: rw init=/sysroot/bin/bash , press Ctrl+x to enter rescue mode
code show as below:
chroot /sysroot
LANG = en
passwd
touch /.autorelabel makes SELinux take effect. If it is not executed, the modified password will not take effect.
exit
reboot
The above are two methods recorded when learning Linux. If there are any inaccuracies, please contact below.
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