I tried upgrading from 11.10 to 12.04. It got to the point of installing packages then I stepped away. When I got back the screen was black (possibly due to the screen saver). I left it for about 8 hours and there was no change. I then power-cycled and now it won't boot to a login screen. I tried hitting
<Esc> repeatedly while powering up (to get to the
Grub menu) but that has no effect.
What should I do now?
I can see the files on the hard disk once I boot from a Live CD. I saw some stuff online about using
dpkg to continue an aborted upgrade from the command line. Is there any comprehensive guide on this?