Red Hat 7.2 Red Hat 6.5 ROOT user password recovery

Red Hat 7.2

Start the interface first

Press ↑↓ key, enter the following interface, select the first item, press the E key to edit

Now the picture to find RO

Change to RW init=/sysroot/bin/sh

Then press CTRL X to start

It goes into emergency mode after launch.

Execute the change command after entering

#chroot/sysroot

#

Check if SELinux is off and the server will not start if it is not turned off

#getenforce

#Disabled

If the

#enabled

Executable

#vi/etc/selinux/config

Perform

: Wq

Save exit

Execute the Change Password command

#passwd

Enter Password two times

Tip All authentication Tokens updated successfully

Identify successful modifications

Subsequent execution

#exit

#/bin/sh Shutdown-r Now

Restart

Change Root password complete

Red Hat 6 Change root password

Press the ↑↓ key at startup,

Press E to edit

Select the second kernel to edit again by E

After the quiet, space 1, then enter.

Then press B to start

Enter single-user mode after booting

Perform

#passwd

Perform a red Hat 6 restart command

#reboot

Red Hat 6 root password is ready to be modified

Red Hat 7.2 Red Hat 6.5 ROOT user password recovery