Kernel panic during boot - what now?

[Markus Lindholm]

Hi

I've run into a nasty problem with kernel panic during boot. I did a
fresh installation of F18 last Wednesday and it was a smooth
experience, but then yesterday I did a 'yum update' that ended up
causing a kernel panic (there wasn't much more happening on the
machine at that time) and after that the boot process always
terminates in a kernel panic almost immediately after the password for
disc encryption has been given. It gives exit code 0x00007F00. I've
got two kernel versions to choose from, 3.6.10-4 and 3.7.2.-201, same
result with both.

What now, how can I repair the system?

/Markus