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[su-kaiyao]翻译中
How To Reset Root Password On CentOS 7
The way to reset the root password on centos7 is totally different to Centos 6. Let me show you how to reset root password in CentOS 7.
1 – In the boot grub menu select option to edit.
2 – Select Option to edit (e).
3 – Go to the line of Linux 16 and change ro with rw init=/sysroot/bin/sh.
4 – Now press Control+x to start on single user mode.
5 – Now access the system with this command.
chroot /sysroot
6 – Reset the password.
passwd root
7 – Update selinux information
touch /.autorelabel
8 – Exit chroot
exit
9 – Reboot your system
reboot
That’s it. Enjoy.
via: http://www.unixmen.com/reset-root-password-centos-7/