Bug#567618: error: unknown filesystem.

[Валерий]

I have the problem seems to be the same:

grub-pc 1.98~20100128-1

texhapb at texhapb:~$ sudo dpkg-reconfigure grub-pc
Installation finished. No error reported.
Generating grub.cfg ...
Found linux image: /boot/vmlinuz-2.6.32-trunk-686
Found initrd image: /boot/initrd.img-2.6.32-trunk-686
Found linux image: /boot/vmlinuz-2.6.31-1-686
Found initrd image: /boot/initrd.img-2.6.31-1-686
Found linux image: /boot/vmlinuz-2.6.30-2-686
Found initrd image: /boot/initrd.img-2.6.30-2-686
Found Microsoft Windows XP Professional RU on /dev/sda1
/usr/sbin/grub-probe: error: unknown filesystem.
done

/dev/sda1 is in NTFS and has WinXP on it

Version 1.98~20100115-1 has no problem.