Bug#463483: Install fails on dmraid device but installer claims success!

[Chris Carr <chrisc@terminalarrogance.com>]

Package: grub-installer
Version: 1.27

I've used recent (late Dec/early Jan) daily builds of Lenny installer 
images on my dmraid system (Silicon Image 3112A "SATA RAID" controller), 
using "install dmraid=true". The installation works, including 
partitioning, but installing grub doesn't. The grub installer correctly 
identifies the root partition, and then claims to have successfully 
installed grub on the dmraid device, but on rebooting the previous boot 
loader is still intact, and there is no sign of grub.

I ended up installing grub4dos from Windows, and manually editing 
menu.lst to point to my Lenny installation.

Once rebooted into Linux, running grub-install from there fails 
properly, i.e. with an error message (I think it was "no such device" or 
similar).

CC