Turns out the problem was unrelated to the upgrade -- one of the memory modules in the laptop went bad, and it chose that boot to manifest itself.
Pulling the problem memory allows the system to work properly again. This is common enough that there's a FAQ for it on the HP support site. -- After upgrade to Karmic, system will not boot https://bugs.launchpad.net/bugs/484257 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
