If you have forgotten the password for your ubuntu server, the following steps may help you recover it
On a traditional Pc
BOOT PC

Press ESC at the grub prompt.
Press e to edit the kernel parameters.
Select line that starts kernel ………, press e
Go to the end of line, and add the following:  rw init=/bin/bash
press enter, then press b to boot your system.

Your system will boot up in a single user shell.

Now its time to change your password Read the rest of this entry »