Single user mode, set a new password and away you go. Requires a reboot, two actually.
Dont need to reboot; just edit grub and add "single" at the end - that takes you to init level 1. Then passwd and change the password, then "init 5".
Dont need to reboot; just edit grub and add "single" at the end - that takes you to init level 1. Then passwd and change the password, then "init 5".