Comment 19 for bug 391044

(hd0) /dev/sda
(hd1) /dev/sdb
(hd2) /dev/sdc
(hd3) /dev/sdd
(hd4) /dev/sde
/boot/grub/device.map (END)

which is fine. still dont get the install to device prompt either from synaptic or apt-get with grub-pc purged and grub installed then installing grub-pc again, though i do when dpkg-reconfigure grub-pc. oddly i very occasionally do get the prompt when doing exactly the same procedure. i'll try do work out exactly which sequence of events causes what next week if i can