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How to reset Root user password from boot on Rocky Linux 8.6

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To Reset Root Password From Boot On Rocky Linux 8.6

Introduction:

Users can only change their own passwords. However, there is still a sudo/root (SuperUser) account. Root users can change the password of any account, even their own. By default, the root user is locked.

Procedure:

Step 1: While turning on the power button, at the grub boot menu press the “ e” key to edit the first boot entry as shown in the below image

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Step 2: From the grub options, go to the line that starts with “ linux” go the end of the line and type “ rd.break” and then press ctrl+x as shown in the below image

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Step 3: Root shell will appear at this stage, the root file system is mounted in read only mode to /sysroot and it must be remounted with read/write (rw) permission, so enter “ mount &ndash o remount,rw /sysroot as shown in the below image

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Step 4: once the file system is remounted, change it to chroot jail so that /sysroot is used as the root of the file system.this can be done by running “ chroot /sysroot” as shown in the below image

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Step 5: From here the root password can be reset with “ passwd” command as shown in the below image.

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Step 6: Now we can reboot but, SELINUX enforcing mode by default we have to fix the context of the /etc/shadow file so create “ touch /.autorelabel” as shown in the below image

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Step 7: Creating this file automatically perform a relabel of all files on next boot.Type “exit” twice and machine will reboot, once the reboot is complete the root account will set with a newly set password as shown in the below image.

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Step 8: Now the machine will reboot and the login screen appears as shown in the below image

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Step 9: login using a root user with changed password as shown in the below image

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Conclusion:

We have reached the end of this article. In this guide, we have walked you through the steps required to reset root password from boot on Rocky Linux 8.6. Your feedback is much welcome.

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Frequently asked questions ( 5 )

Q

If there is a root password set and I have forgotten it, can boot normally and can use sudo?

A

yes, you can use sudo try this from a terminal.# sudo passwd -dl root

Q

I changed my password and then changed it back again. Now I can't get back into my user admin message...could not update ICEauthority file/home/username/.how to recover this?

A

If something is wrong you can fix it with those commands, then logout and login again.To fix the ownership: sudo chown : /home//.ICEauthority.To fix read/write permissions: sudo chmod 600 /home//.ICEauthority

Q

Can't log in after password change (encrypts)? what will do, please give one solution.

A

log in to the terminal.
$ ecryptfs-mount-private
You need to know your old password to mount.

This will unlock and mount your /home/$USER. At this point, we can access /home/$USER. So just cd back into it and run…

$ ecryptfs-rewrap-passphrase ~/.ecryptfs/wrapped-passphrase

Q

If you are logged in as another user (e.g. root), then replace the command

A

ecryptfs-rewrap-passphrase ~/.ecryptfs/wrapped-passphrase
by something like

ecryptfs-rewrap-passphrase /home/[the-user-you-whose-home-you-want-to-rewrap]/.ecryptfs/wrapped-passphrase
or (on a Live CD) by something like

ecryptfs-rewrap-passphrase /[wherever-you-temporarily-mounted-the-home-partition]/[the-user-you-whose-home-you-want-to-rewrap]/.ecryptfs/wrapped-passphrase

Q

What can I do about a "not configured" device?

A

If the device is not the one you need, you can safely ignore the not configured warnings. In some cases, it's just a variation of a supported device. This means it may be relatively easy for a developer to add support for the new card. Otherwise, a new driver would have to be written, which may not even be possible if the device is not fully documented.

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