I had the same problem, a little bit of googling brought me to this article: http://sahd.lamafam.org/?p=1866
Even though in my case the problem occurred after a distribution upgrade and not after adding a new HD I still decided to check the boot priority settings in BIOS (after re-installing grub several times didn't make a difference). The settings hadn't changed, although the slots of my internal USB memory card reader were listed between the DVD drive and the first hard disk. That was never a problem before, but I still decided to put the boot hard disk in second place. That seems to have solved the problem. Why, I don't know. There was no memory card in the card reader. Hope this helps. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/836378 Title: Oneiric upgrade, boot hangs at error: symbol not found: grub_divmod64_full To manage notifications about this bug go to: https://bugs.launchpad.net/update-manager/+bug/836378/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs