Bug#595154: grub2: configure wants to install on md_d0p1 instead of md_d0

[Miquel van Smoorenburg]

Package: grub2
Version: 1.98+20100804-4
Severity: normal

When installing grub2 on a system that boots from a partitioned
mdraid (after applying the fixes in #595071), the configure step
asks me for disks to install on:

	/dev/sda
	/dev/sdb
	/dev/md_d0p1

Grub2 should be installed on /dev/md_d0, but somehow the configure
step offers /dev/md_d0p1 instead.

Mike.