thanks for giving me the solution but i have one more problem is that rescue environment is not working also what will be the sol. now
i have only admin user access plz tell me if u have any idea in yr mind.
Thanks & regards
Originally Posted by jschiwal
You would need to access the root partition with a rescue disk or a live distro so that you bypass the grub password. Then mount the root partition and zero the root password. Reboot and su to root (no password now) and run "passwd" to change it.