I am a Linux newbie who has tried to update from Ubuntu 10.04 LTS (used for 3 years) to 12.04 LTS on my Dell desktop using update manager.
I thought all was working well, even though my HD partition desktop is small (just 20gb) and commentary stated short disk space.
I am now faced with the
grub> prompt, what do I do now?
Can I go back to 10.04 or boot via USB?