If you forget a root password of your RHEL 8 and CentOS 8 and want to reset the password so that the RHEL 8 and CentOS 8 based Linux distribution to run successfully with new password. When the root password is forgotten it so vital that you need to recover it without reinstalling the RHEL 8 and CentOS 8. During the recovery process you won’t able to access any documentation so it is recommended to write this commands separately on a piece of paper so that recovery process will complete successfully.
The steps are given below to recover the root password on RHEL 8 and CentOS 8:
- Select the Linux Kernel
- Edit the Linux kernel Parameters
- Recover the root password
- Auto Label the SELinux context to /etc/passwd file
- Boot with the graphical user interface target
Step-1 : Select the Linux Kernel
Press up and down key simultaneously so that you will access the GNU-GRUB2 menu. From the first option hit
E to edit the first grub menu.
Step-2 : Edit the Linux kernel Parameters
After editing the GNU-GRUB2 menu find the lines started with
linux16 and hit
End button to go to the last line and add
rd.break to it.
After add these lines hit
X to boot.
Step-3 : Recover the root password
First mount the
# mount -o rw,remount /sysroot
Then Change the root directory to
# chroot /sysroot
After that change the root password and you will be prompted to add the new password make sure it is strong.
# passwd root
Step-4 : Auto Label the SELinux context to /etc/passwd file
Finally after running the
passwd command the Linux need to be set the new password by relabeling to the
/etc/passwd file and it is necessary for running with correct SELinux context.
# touch /.autorelabel
It takes several minutes depending on your system CPU and Hard Drive speed.
Step-5 : Boot with the graphical user interface target
It is vital to run the Linux distribution with the graphical user interface by using the
# systemctl set-default graphical.target
When done type two times
exit command to exit from
chroot jail and to reboot the system.
Congratulations, now you have recovered the root password. If need an assistance or help then you need to use the comment section below for more support and help.