One thing we could do would be to install Raring, but then boot some Saucy kernels on it, to identify the earliest kernel that did boot and the first that didn't boot. Do you think this is something you could try?
** Tags removed: kernel-key ** Tags added: kernel-da-key -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1212977 Title: saucy daily-live images are unbootable on Dell Optiplex 990; stuck in BusyBox shell To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1212977/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs