I have screwed up my Ubuntu 10.04 install be deleting essential packages.
When I boot from 12.04 live CD I get the error:
No boot device available, Press ENTER key to retry
Grub also won't load, I get the error:
Error 15: File not found.
The Ubuntu live CD does work, I have tried it on another PC.
Using a CentOS CD I don't get the "No boot device available..." error message and can get to a command line and use apt-get to install packages. However it is so broken it really needs a fresh install.
Why won't the Ubuntu live CD work and the CentOS one will?
Is there a way to get the Ubuntu CD to boot? I don't want to install CentOS and then install Ubuntu after.