In this how to we shall discuss how to reset root password in Ubuntu 10.04 LTS. I guess this howto will be of highly useful if you forgot your root password in Linux servers particularly in debian based systems like Ubuntu.
Single User Mode in Ubuntu
To reset the root password you have to boot to single user mode. Follow to steps below to boot to the single user mode in Ubuntu 10.04 LTS.
Please note that Ubuntu 10.04 LTS use the GRUB 2 as bootloader. The first boot option will be used by GRUB 2 by default and it will be used for booting without waiting for user input. So you need to interrupt the boot process for getting boot menu.