If you can attach your entire menu.lst we can probably see what has happened.
I'm guessing when you moved your disk from your old pc to the new one and changed the kernel entries, you didn't update the automagic bit, or it has gone missing some how. I am then guessing a kernel update was installed which triggered a regeneration of the menu.lst and made it incorrect (although correct for your old pc) -- Unable to boot Ubuntu server after update/upgrade https://bugs.launchpad.net/bugs/321603 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs