View source for Reset forgotten password in Ubuntu

#Turn your computer on.
#Press ESC at the grub prompt.
#Press e for edit.
#Highlight the line that begins kernel ........., press e
#Go to the very end of the line, add rw init=/bin/bash
#press enter, then press b to boot your system.
#Your system will boot up to a passwordless root shell. CAUTION: This is a FULL ROOT SHELL! You can damage your system if not careful!
#Type in passwd <username>. Set your password.
#Type in reboot.