[Bug 990888] [NEW] grub2 wont boot from USB any more

[Tom Hibbert]

Public bug reported:

Sometime between June 13, 2011 and the release date of grub-pc
1.99-12ubuntu5 a change was committed to grub2 which prevents it booting
from a USB key on my laptop (Asus M5000).

Using syntax: grub-install /dev/sdb --root-directory=/media/usbdisk
installs successfully, on reboot results in: Bad or missing operating
system, reboot or select valid boot device. The resulting usb key boots
successfuly under virtualbox.

A workaround is possible by chainloading grub from syslinux, although
this is painful.

I have investigated the issue with Jordan_U of #grub on freenode.  We
tried a grub-mkrescue image from #4248 without success.

** Affects: grub2 (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/990888

Title:
  grub2 wont boot from USB any more

Status in “grub2” package in Ubuntu:
  New

Bug description:
  Sometime between June 13, 2011 and the release date of grub-pc
  1.99-12ubuntu5 a change was committed to grub2 which prevents it
  booting from a USB key on my laptop (Asus M5000).

  Using syntax: grub-install /dev/sdb --root-directory=/media/usbdisk
  installs successfully, on reboot results in: Bad or missing operating
  system, reboot or select valid boot device. The resulting usb key
  boots successfuly under virtualbox.

  A workaround is possible by chainloading grub from syslinux, although
  this is painful.

  I have investigated the issue with Jordan_U of #grub on freenode.  We
  tried a grub-mkrescue image from #4248 without success.

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