Ubuntu Grub Recovery / Forgot root password
1. Reboot your computer
2. Press SHIFT or ESC at the grub prompt (as earlier).
3. Select your image.
4. Highlight the line that begins kernel and press 'e' to edit
5. Go to the very end of the line, change the ro to rw and add init=/bin/bash
press enter, then press b or F10 to boot your system.
Your system will boot up to a passwordless root shell.
6. Type in passwd username
7. Set your password.
8. Type in reboot
German Keyboard Hints
: = Ö
= = ' (left of backspace key)
/ = - (left of right shift key)