[Bug 498533] Re: failures on grub-install to create rescue boot media

[Bryan Quigley]

Thank you for taking the time to report this bug and helping to make
Ubuntu better. We are sorry that we do not always have the capacity to
look at all reported bugs in a timely manner.

This was reported against a very old release so I'm going to close it.
If you still have the issue please reopen.

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

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Title:
  failures on grub-install to create rescue boot media

Status in grub2 package in Ubuntu:
  Invalid

Bug description:
  Binary package hint: grub2

  9.10

  The following example used to work with grub1 to create separate
  rescue boot media:

  * Plugged in the USB Stick which contains a dedicated grup partition and chainloads other (rescue) boot partitions for several installations that are on the stick.
  * cp -r /boot /media/<label>
  * adjusted device.map
  * grub-install --root-directory=/media/<label> /dev/sdb5

  With grub2, it first broke the chainloading of grub2 in sda5 from a
  dedicated grub1 partition on me (the boot sequence installed and used
  normally). -> Grub2 needed "grub-install /dev/sda5" to work again.

  Now (possibly some updates later) "grub-install --root-
  directory=/media/<label> /dev/sdb5" complains about not reading
  /grub/core.img

  # grub-install --root-directory=/media/<label> /dev/sdc5
  grub-setup: warn: Attempting to install GRUB to a partition instead of the MBR.  This is a BAD idea.
  grub-setup: warn: Embedding is not possible.  GRUB can only be installed in this setup by using blocklists.  However, blocklists are UNRELIABLE and its use is discouraged.
  grub-setup: error: Cannot read `/grub/core.img' correctly

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