Linux basics: How To Reset Forgotten Password In Ubuntu

We have already showed you how to reset a forgotten password in CentOS. In this brief tutorial, we will see how to reset the lost or forgotten password in Ubuntu and derivatives.

Here, we will reset the lost/forgotten password of Ubuntu 14.10 server.

Power on the system. You should see the grub menu when booting your system.

Ubuntu 14.10 server [Running] - Oracle VM VirtualBox_007

Press “e” to edit the grub menu. The following screen should appear.

Ubuntu 14.10 server [Running] - Oracle VM VirtualBox_008

Find the line that starts with: linux     /boot/vmlinuz….

Ubuntu 14.10 server [Running] - Oracle VM VirtualBox_009

Go to the end of the line and type: init=/bin/bash

Ubuntu 14.10 server [Running] - Oracle VM VirtualBox_010

Now, press CTRL+X or F10 to boot your Ubuntu system.

Once you reached the bash prompt, type the following commands to mount the file system in rw mode.

mount -o remount,rw /

Now, change the password using command:


The above command will reset your root user password. If you want to change the password of a specific user, for example sk, use the following command instead.

passwd sk

Reboot your system.

reboot -f

That’s it. Now, you can login using your new password.