Bug#728737: grub-probe: no partitions and filesystems detected on dmraid-device

[Colin Watson]

On Mon, Nov 04, 2013 at 09:52:00PM +0100, mtths at nurfuerspam.de wrote:
> using update-grub to generate grub.cfg the following error happens:
> grub-probe: error: unknown filesystem.
> .... and an existing Windows installation on /dev/mapper/pdc_bcbc3 is not
> detected fully (see grub.cfg: missing insmod for part_msdos and ntfs).
> 
> The problem seems to be the failing of (cf. /usr/share/grub/grub-mkconfig_lib):
> grub-probe -t partmap -d /dev/mapper/pdc_bcbc3  # =>  no / empty result
> grub-probe -t fs -d /dev/mapper/pdc_bcbc3  # =>  unknown filesystem
> (On the other hand, the same works fine on a different disk (e. g. /dev/sda4).)

Thanks for your report.  Could you please run this command with 2.00-*
(tell me which version) and attach the resulting grub-probe-fs.out file
to this bug report?

  grub-probe -vv -t fs -d /dev/mapper/pdc_bcbc3 >grub-probe-fs.out 2>&1

-- 
Colin Watson                                       [cjwatson at debian.org]