[Bug 681535] Re: Auto-detection of a filesystem of /dev/md0 failed.

[dtk]

Same setup here as with #10 (except I believe to remember that it worked
with my initial install and only broke after I changed the partitioning
scheme afterwards in 'rescue mode').

The problem still exists in oneiric's version:

    # aptitude show grub-pc | grep Version
    Version: 1.99-11ubuntu1
    # grub-install --recheck /dev/sda
    /usr/sbin/grub-probe: error: no such disk.
    Auto-detection of a filesystem of /dev/mapper/crypt_part-root failed.
    Try with --recheck.
    If the problem persists please report this together with the output of "/usr/sbin/grub-probe --device-map="/boot/grub/device.map" --target=fs -v /boot/grub" to <bug-grub at gnu.org>

I am most certain this bug report needs to be reopened. tia.

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https://bugs.launchpad.net/bugs/681535

Title:
  Auto-detection of a filesystem of /dev/md0 failed.

Status in “grub2” package in Ubuntu:
  Fix Released

Bug description:
  Binary package hint: grub2

  Setting up grub-pc (1.99~20101124-1ubuntu1) ...
  /usr/sbin/grub-probe: error: no such disk.
  Auto-detection of a filesystem of /dev/md0 failed.
  Please report this together with the output of "/usr/sbin/grub-probe --device-map="/boot/grub/device.map" --target=fs -v /boot/grub" to <bug-grub at gnu.org>
  /usr/sbin/grub-probe: error: no such disk.

  > sudo /usr/sbin/grub-probe --device-map="/boot/grub/device.map" --target=fs -v /boot/grub
  /usr/sbin/grub-probe: info: the size of hd0 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd0 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd1 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd1 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd2 is 781422768.
  /usr/sbin/grub-probe: info: the size of hd2 is 781422768.
  /usr/sbin/grub-probe: info: scanning hd0 for LVM.
  /usr/sbin/grub-probe: info: the size of hd0 is 1953525168.
  /usr/sbin/grub-probe: info: no LVM signature found
  .
  /usr/sbin/grub-probe: info: the size of hd0 is 1953525168.
  /usr/sbin/grub-probe: info: scanning hd1 for LVM.
  /usr/sbin/grub-probe: info: the size of hd1 is 1953525168.
  /usr/sbin/grub-probe: info: no LVM signature found
  .
  /usr/sbin/grub-probe: info: the size of hd1 is 1953525168.
  /usr/sbin/grub-probe: info: scanning hd2 for LVM.
  /usr/sbin/grub-probe: info: the size of hd2 is 781422768.
  /usr/sbin/grub-probe: info: no LVM signature found
  .
  /usr/sbin/grub-probe: info: the size of hd2 is 781422768.
  /usr/sbin/grub-probe: info: the size of hd0 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd0 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd1 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd1 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd2 is 781422768.
  /usr/sbin/grub-probe: info: the size of hd2 is 781422768.
  /usr/sbin/grub-probe: info: the size of hd0 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd0 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd1 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd1 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd2 is 781422768.
  /usr/sbin/grub-probe: info: the size of hd2 is 781422768.
  /usr/sbin/grub-probe: info: changing current directory to /dev.
  /usr/sbin/grub-probe: info: changing current directory to snd.
  /usr/sbin/grub-probe: info: changing current directory to by-path.
  /usr/sbin/grub-probe: info: changing current directory to cpu.
  /usr/sbin/grub-probe: info: changing current directory to shm.
  /usr/sbin/grub-probe: info: changing current directory to dri.
  /usr/sbin/grub-probe: info: opening md0.
  /usr/sbin/grub-probe: error: no such disk.

  with grub 1.98+20100804-7ubuntu1:

  > sudo /usr/sbin/grub-probe --device-map="/boot/grub/device.map" --target=fs -v /boot/grub
  /usr/sbin/grub-probe: info: the size of hd0 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd0 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd0 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd0 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd1 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd1 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd1 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd1 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd2 is 781422768.
  /usr/sbin/grub-probe: info: the size of hd2 is 781422768.
  /usr/sbin/grub-probe: info: the size of hd2 is 781422768.
  /usr/sbin/grub-probe: info: the size of hd0 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd0 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd0 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd0 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd1 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd1 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd1 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd1 is 1953525168.
  /usr/sbin/grub-probe: info: the size of hd2 is 781422768.
  /usr/sbin/grub-probe: info: the size of hd2 is 781422768.
  /usr/sbin/grub-probe: info: the size of hd2 is 781422768.
  /usr/sbin/grub-probe: info: changing current directory to /dev.
  /usr/sbin/grub-probe: info: changing current directory to snd.
  /usr/sbin/grub-probe: info: changing current directory to by-path.
  /usr/sbin/grub-probe: info: changing current directory to cpu.
  /usr/sbin/grub-probe: info: changing current directory to shm.
  /usr/sbin/grub-probe: info: changing current directory to dri.
  /usr/sbin/grub-probe: info: opening md0.
  ext2

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