Q:

How to recover unbootable system?

I have just run the most recent set of recommended updates on a 10.10 system. The computer is now un-bootable. 
It gets as far as the "Ubuntu..." splash and then does nothing. I cannot switch to a console. Booting from the 10.10 Live-CD is fine.
Seems like no point in doing a reinstall, as I'll probably end up at the same point. Downgrade the kernel or other software from the Live-CD??
Any recommendations? 

This is a work computer, so I need to fix this ASAP. Is Ubuntu 10.10 not recommended for corporate environment. Should I be using another distro?
Thanks.

A:

For a work machine then you should certainly consider sticking with the Ubuntu 10.04 LTS (Long Term Support) release which will get point releases and bug fixes. I wouldn't put my work machine on 10.10 unless working on fixing Ubuntu was my work.
For your unbootable problem, you can install or you can provide a dmesg log to a bug report so the problem can be prevented in future:
https://help.ubuntu.com/community/ReportingBugs

