centos7 forget the root system administrator account password, how to change the password of the solution

First, open centos7, press the "e" in the choice of entering the system interface to enter the edit page.

Press the down key, to find the row "Linux16" beginning, at the end face of the input line "init = / bin / sh"

Then press "ctrl + X" single-user mode key combination

Then enter "ls" query the current position (may be omitted), Enter

Then enter "mount -o remount, rw /" (note that a space / -o between between the mount and with rw)

Then enter the "passwd" Enter

The next step is to change your root account password, and re-enter a password less than eight

(Password while typing is not displayed, it looks like the same did not respond, just enter the correct and enter on it)

Then enter touch /.autorelabel, Enter

Enter the exec / sbin / init, carriage return

The following screen appears after the carriage return, here a little wait a few minutes, the system will automatically restart

Then on the other system restart and then enter check whether they have succeeded modified

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