Ubuntu forgotten password

What to do when you forgot your password for your ubuntu machine?? Here are some simple steps on how to change
the password using single user mode.

Reboot the machine

When grub is loading, press ‘Esc‘

Choose ‘Ubuntu kernel………..(recovery mode)‘

• Press ‘e‘ to edit the kernel parameter
• Append ‘single init=/bin/bash‘ to the kernel parameter

Press ‘b‘ to boot from that particular kernel

You will enter single user mode

Your hard drive will be in read-only mode. Remount it in read-write mode

• # mount -o remount,rw /dev/sda1

Change your passwd

• # passwd user

Reboot your machine

Access your machine using your new password

Congratulations, you just changed you user password using single user mode

Source: Linuxwave