How to Reset Root Password in RHEL from GRUB

Resetting the root password in Red Hat Enterprise Linux (RHEL) from GRUB is a common task when you forget the password or need to regain access. Below are the steps to reset the root password in RHEL from GRUB:

1. Start the RHEL machine and when the GRUB menu appears, select the RHEL entry and press 'e' to edit.
2. Find the line starting with 'linux16' or 'linuxefi' and add rd.break enforcing=0 at the end of that line.
3. Press 'Ctrl + x' to boot with the modified entry.
4. Remount the root file system as read/write by running mount -o remount,rw /sysroot
5. Change the root password by running chroot /sysroot followed by passwd and set a new password.
6. Update the SELinux policy by running touch /.autorelabel
7. Exit the chroot environment by running exit
8. Finally, reboot the system with reboot command.

By following these steps, you can easily reset the root password in RHEL from GRUB and regain access to your system.

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