1. Reboot and Access GRUB Menu

• Reboot the system.
• During boot, when GRUB appears, press e to edit the default kernel entry.

2. Edit the Kernel Boot Parameters

• Find the line beginning with linux16
• Replace:

ro

• with:

rw init=/sysroot/bin/sh

3. Boot with Modified Parameters

• Press Ctrl + X to boot into single-user mode.

4. Access the System

• Once booted, you'll be at a prompt. Run:

chroot /sysroot

5. Reset Password

• Enter:

passwd root

• Set the new password.

6. Relabel SELinux Contexts (if enabled)

• If SELinux is enforcing, run:

touch /.autorelabel

7. Exit and Reboot

• Run:

exit
reboot

1. Reboot and Access GRUB Menu

• Reboot the system.
• When GRUB menu appears, select the entry you want to modify and press e.

2. Edit the Boot Parameters

• Look for the line that starts with:

linux

• Replace:

ro quiet splash

• or similar with:

rw init=/bin/bash

3. Boot into Shell

• Press Ctrl + X or F10 to boot.

4. Reset Password

• At the root shell prompt (#), enter:

passwd root

• Enter a new password when asked.

5. Remount and Reboot Cleanly

• Ensure the root filesystem is mounted correctly:

mount -o remount,rw /

• Then reboot:

exec /sbin/init

• or

reboot -f