Top 5 to do when you upgrade to Ubuntu Linux 10.10 and your computer won't start

Here is top 5 to do list when you upgrade to Ubuntu Linux 10.10 and your computer won't start

Okay, first thing first, most likely you'll need to wipe everything and install Ubuntu again but as mentioned previously, I hope you have a backup for everything.

2nd step is: Boot from Ubuntu LiveCD and DO NOT install, just choose "try without installation".

3rd step: while you're on the live session, try to use GParted to format the root (/) partition and format the swap partition too.
If you have /home partition then keep it, DO NOT format it.

4th step: Try to install Ubuntu again. Try 8.10 or 10.10. I'd recommend to try 8.10 as 10.10 has lots of issues lately.

If nothing changed then ...

5th step: boot into the liveCD, choose "try ubuntu without installation" and use GParted to wipe everything. Remember, you need a backup for your important files before anything.

Source : http://ubuntuforums.org/showthread.php?s=2076883a093347c5b16f9ad6c194d78d&t=1600910

Ubuntu boot problems when upgrade from 10.04 to 10.10

Good morning Ubuntu Lovers, some people having problems when upgrade ubuntu from 10.04 to 10.10. Lucky for me that I have no problems upgrade from Ubuntu 10.04 to 10.10 in my laptop (Acer Travelmate 2420).
May be this link will help you :

How to Upgrade from 10.04 to 10.10?

Boot problem >>