Here's some additional information: The message actually refers to failed startup; this seems to be because the shutdown leaves it in an invalid state. When it's in this state, the BIOS loading screen comes up briefly, goes away, and comes back - hence the "failed startup".
If I shutdown using alt sysrq e u b, the next startup is fine. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/776803 Title: Natty does not shut down cleanly (enough for my BIOS) To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/776803/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs