Bug#586627: grub-common: grub-probe could't find "/dev/dm-*" devices

[Andrey Nikitin]

Package: grub-common
Version: 1.98-1
Severity: important
Tags: squeeze upstream

% sudo /usr/sbin/grub-probe /
/usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?).

% df -hT /
Filesystem    Type    Size  Used Avail Use% Mounted on
/dev/dm-0     ext3    2.0G  299M  1.6G  16% /

% ls -l /dev/dm-0 
brw-rw---- 1 root disk 253, 0 Июн 21 09:25 /dev/dm-0

% cat /proc/cmdline 
BOOT_IMAGE=//vmlinuz-2.6.32-5-686-bigmem root=/dev/mapper/md_mirr-root ro quiet


% ls -l /dev/mapper 
crw------- 1 root root 10, 59 Июн 21 09:25 control
lrwxrwxrwx 1 root root      7 Июн 21 09:26 md_mirr-data -> ../dm-5
lrwxrwxrwx 1 root root      7 Июн 21 09:26 md_mirr-home -> ../dm-4
lrwxrwxrwx 1 root root      7 Июн 21 09:25 md_mirr-root -> ../dm-0
lrwxrwxrwx 1 root root      7 Июн 21 09:26 md_mirr-tmp -> ../dm-1
lrwxrwxrwx 1 root root      7 Июн 21 09:26 md_mirr-usr -> ../dm-2
lrwxrwxrwx 1 root root      7 Июн 21 09:26 md_mirr-var -> ../dm-3

% sudo lvdisplay 
  --- Logical volume ---
  LV Name                /dev/md_mirr/root
  VG Name                md_mirr
  LV UUID                0tQ1On-O5jB-Kfip-2ruI-tRvx-kFca-lAjesI
  LV Write Access        read/write
  LV Status              available
  # open                 1
  LV Size                2,00 GiB
  Current LE             512
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:0
....

% cat /proc/mdstat 
Personalities : [raid1] 
md1 : active raid1 sda3[0] sdb3[1]
      384764672 blocks [2/2] [UU]
      
md0 : active raid1 sda1[0] sdb1[1]
      96256 blocks [2/2] [UU]
      
unused devices: <none>


-- System Information:
Debian Release: squeeze/sid
  APT prefers testing
  APT policy: (990, 'testing')
Architecture: i386 (i686)

Kernel: Linux 2.6.32-5-686-bigmem (SMP w/4 CPU cores)
Locale: LANG=ru_RU.UTF-8, LC_CTYPE=ru_RU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages grub-common depends on:
ii  base-files              5.7              Debian base system miscellaneous f
ii  dpkg                    1.15.7.2         Debian package management system
ii  gettext-base            0.17-11          GNU Internationalization utilities
ii  install-info            4.13a.dfsg.1-5   Manage installed documentation in 
ii  libc6                   2.11.1-3         Embedded GNU C Library: Shared lib
ii  libfreetype6            2.3.11-1         FreeType 2 font engine, shared lib
ii  zlib1g                  1:1.2.3.4.dfsg-3 compression library - runtime

Versions of packages grub-common recommends:
pn  os-prober                     <none>     (no description available)

Versions of packages grub-common suggests:
pn  grub-emu                      <none>     (no description available)
pn  multiboot-doc                 <none>     (no description available)