Re: Is my Ubuntu 10.10 corrupt?
You can't go up to 11.04 either, it's also well and truly out of support.
A clean install is now the only way, you've left it too long to do an in-place upgrade.
These days you can do a clean install while retaining your home folder (even if it's in the same partition as /). It's really very easy.
I try to treat the cause, not the symptom. I avoid the terminal in instructions, unless it's easier or necessary. My instructions will work within the Ubuntu system, instead of breaking or subverting it. Those are the three guarantees to the helpee.