[Bug 1041446] Re: GRUB hangs if a disk is connected

[Darius]

I tried a USB Ubuntu 12 installer and it refused to boot off it (the
same key worked in another system) so the BIOS seems really fussy.

Unfortunately it leaves me in an annoying position upgrade wise :(

I have upgraded the BIOS to the latest version (which was a pain, it
would not boot a FD image on a CD but the BIOS self updater would read
off a USB key..)

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https://bugs.launchpad.net/bugs/1041446

Title:
  GRUB hangs if a disk is connected

Status in “grub2” package in Ubuntu:
  Incomplete

Bug description:
  I have a Gigabyte G33M-DS2R (Core2Duo) system currently running
  10.04.4. I tried to boot a 12.04.1 (amd64 server) ISO and it hangs
  unless I unplug the disk so the BIOS doesn't see it.

  If I unplug the disk, then plug it while the kernel loads I can
  install onto it but rebooting onto it hangs.

  I see absolutely no debugging information though - the last message on
  the screen is "Updating DMI Pool Data ...." which is from the BIOS.

  I tried holding down shift as well as tapping escape while GRUB starts
  but I didn't get given a menu.

  Ctrl-alt-del does reset the PC so presume that it must happen very
  early on.

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