Reset Root Password on Linux
Linux Admins are quite lazy and tend to forget everything (some times) except their commands and config-file directives, everything includes passwords also. In such case admin has to recover his own password to login as root. Recovering the root password is quite simple compared to other work. To recover the password. machine has to start with single user mode; because in single user mode system won’t ask for password to login. Follow the steps to recover the password.
Start the machine, press any key to enter in to the menu.