Quoting Kevanf1 <kevanf1(a)gmail.com>:
I went to upgrade my Ubuntu PC last week and it won't. So Fedora
is not on the cards (I have been seriously thinking of trying Fedora
again after some time...) Don't yet know what the problem is but it
won't boot, it gives variously kernel panic messages or simply unable
to boot from drive and that's both the DVD for a live disk and the
hard drive. I suspect a dodgy stick of RAM.
Ubuntu won't boot or Fedora? Confusing much!
You have memtest on the Ubuntu boot discs, so at least that mystery
can be addressed.