How to: Recover Ubuntu User’s Password

There are several way to reset a forgotten user password in Ubuntu, here it is:

1. Via Recovery Boot Menu (GRUB)

   Wait ’till the shell dropped, so you may easily change the USER password,
   $ passwd USER
   
   Reboot! And It works.
   
   FAQ : “My GRUB doesn’t have a recovery mode, what should I do now??”
   Answer : “See the next tips . . . “

2. If your GRUB doesn’t have a recovery mode menu,
   just edit the exist one.

   When a GRUB appeared, press escape, and “e” to edit a boot line
   at the end “kernel . . .” line add this line: “rw init=/bin/bash
   ” (without quotes)
   After some moment, you’ll have a passwordless shell like in recovery mode.
   
   So you can change the password easily.
   $ passwd USER

3. The other alternative method (Using LiveCD)

   Open a Gnome terminal :
   Applications->Accessories->Terminal
   , or
   Alt+F2, type “gnome-terminal” without quotes
   
   Mount your partition with ubuntu installed in
   you might just click the disk on Places, or
   
   $ sudo mount /dev/sda1/ /media/sda1
   in this case, our ubuntu partition is sda1, you’ve to create a /media/sda1 directory before if it doesn’t exist.
   
   chroot into the system:
   $ chroot /media/sda1
   
   change the USER password
   $ passwd USER

Reboot! And It works.

I Hope it’s useful, thanks
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