GRUB problem after upgrading to 10.04

[NoOp]

On 04/30/2010 10:26 AM, Mark Ziranski wrote:
> Hello,
> 
> today I have upgraded from 9.10 to 10.04. At the end of the upgrade
> process GRUB-pc has been installed. I chosed /dev/sdb1 as device and
> my pc does not boot up anymore.

https://help.ubuntu.com/community/Grub2
- Reinstalling GRUB 2
 - SIMPLEST - Copy GRUB 2 Files from the LiveCD

should get you back on track.