Bug#614833: grub-pc: Grub fails to install on /dev/md0 (Raid5)

[S. Porth]

Package: grub-pc
Version: 1.98+20100804-14
Severity: normal

Upgraded to squeeze.  Let grub chainload as recommended, reboted and that
worked fine so I ran upgrade-from-grub-legacy and now grub wont install on
my Raid5 device.

backup:/etc# grub-install /dev/md0
/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>

backup:/etc# /usr/sbin/grub-probe --device-map="/boot/grub/device.map" --target=fs -v /boot/grub
/usr/sbin/grub-probe: info: changing current directory to /dev.
/usr/sbin/grub-probe: info: changing current directory to disk.
/usr/sbin/grub-probe: info: changing current directory to by-uuid.
/usr/sbin/grub-probe: info: changing current directory to by-id.
/usr/sbin/grub-probe: info: changing current directory to block.
/usr/sbin/grub-probe: info: opening md0.
/usr/sbin/grub-probe: error: no such disk.



-- Package-specific info:

*********************** BEGIN /proc/mounts
/dev/root / ext3 rw,relatime,errors=remount-ro,barrier=0,data=writeback 0 0
/dev/md1 /var ext3 rw,relatime,errors=continue,barrier=0,data=writeback 0 0
*********************** END /proc/mounts

*********************** BEGIN /boot/grub/device.map
*********************** END /boot/grub/device.map

-- System Information:
Debian Release: 6.0
  APT prefers squeeze-updates
  APT policy: (500, 'squeeze-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.37 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages grub-pc depends on:
ii  debconf [debconf-2.0]   1.5.36.1         Debian configuration management sy
ii  grub-common             1.98+20100804-14 GRand Unified Bootloader, version 
ii  libc6                   2.11.2-10        Embedded GNU C Library: Shared lib
ii  libdevmapper1.02.1      2:1.02.48-5      The Linux Kernel Device Mapper use
ii  ucf                     3.0025+nmu1      Update Configuration File: preserv

grub-pc recommends no packages.

Versions of packages grub-pc suggests:
pn  desktop-base                  <none>     (no description available)

-- debconf information:
  grub2/kfreebsd_cmdline:
  grub2/device_map_regenerated:
* grub2/linux_cmdline:
* grub-pc/install_devices_empty: true
  grub-pc/install_devices_failed: false
* grub-pc/chainload_from_menu.lst: true
  grub-pc/kopt_extracted: true
* grub-pc/install_devices:
  grub-pc/postrm_purge_boot_grub: false
  grub-pc/install_devices_failed_upgrade: true
  grub-pc/disk_description:
  grub2/kfreebsd_cmdline_default: quiet
  grub-pc/partition_description:
  grub-pc/install_devices_disks_changed:
  grub2/linux_cmdline_default: quiet
  grub-pc/mixed_legacy_and_grub2: true