CentOS7 reset/change password

CentOS7 change password

1. After entering the startup interface, press E to enter the editing state
2. Add rd.break after UTF-8
3. Press CRTL+X to start single-user mode
4. Enter the following command to modify

    mount -o remount,rw /sysroot
	chroot /sysroot
	passwd root
	touch /.autolabe
	exit
	reboot