[Bug 471715] Re: grub2 doesn't find dos partitions on usb

[Rolf Leggewie]

Did this ever occur in lucid or later?

** Changed in: grub2 (Ubuntu)
       Status: New => Incomplete

** Changed in: grub2 (Ubuntu)
     Assignee: (unassigned) => Rolf Leggewie (r0lf)

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https://bugs.launchpad.net/bugs/471715

Title:
  grub2 doesn't find dos partitions on usb

Status in “grub2” package in Ubuntu:
  Incomplete

Bug description:
  I had a working sdhc usbkey that had a dos partition and grub which
  could boot into it as well as a bootable linux (split into / and
  /home) under jaunty.  Simple, easy...

  Karmic has been an absolute disaster trying to do any kind of upgrade.

  I managed to get it installed, and it insisted on including all the
  partitions I really didn't want (and there seems to be no way to fix)
  from whatever system I'm doing the install on.

  THERE IS NO USEFUL DOCUMENTATION FOR GRUB2.  ONLY FILES IT TELLS ME
  NOT TO EDIT ACTUAL CONFIG FILES OR HAS OBSCURE UNDOCUMENTED
  UNCOMMENTED AND BROKEN SCRIPTS.

  It does not detect the DOS partition on the USB key even if it boots
  from and has the root on the USB key.  I've gone into 30_osprobe and
  can only determine that it can't find it though it apparently accesses
  it but cannot get it to say why and because there is no manual
  alternative I can't fix it.

  GRUB2 should NOT have been included in Karmic.  The documentation is
  not ready or nonexistent (even for someone who regularly hacks
  kernels) and the probing is unstable and unreliable, and there are no
  safety valves or escape mechanisms when something doesn't work.

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