Ubuntu reset password

Sometimes we just forgot a password when the computer asks to you, sometimes I forgot password on a fresh Ubuntu install. But what's next, how to recover the forgotten password?

Steps:
Turn on computer or restart, and select Advanced options for Ubuntu (Look in the picture.)

Next select Ubuntu, with Linux 3.13.0-35-generic (recovery mode) kernel version number may have by different.

Then, root Drop to root shell promt

Then write these commands:

1. mount -rw -o remount /     (Enter)
2. sudo passwd   your username    (Enter)

Enter your new password (2x) press Enter!

Restart.