Briefly, the problem is almost certainly that grub-pc's debconf configuration was misconfigured such that it failed to actually install a new version of the boot loader such that the VM would boot from it, but it upgraded the configuration file anyway. There is no guarantee that new configuration files will be compatible with old boot loaders; if the boot loader isn't properly installed on upgrade, that's an invalid state.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/949992 Title: Upgrade from Lucid to Precise results in broken grub configuration To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/949992/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
