Bug#686955: grub-installer: Grub fails to install on dm-crypt on LVM on SATA RAID 0

[Conrad Hughes <debbugs@xrad.org>]

> # cat /boot/grub/device.map 
> (hd0)   /dev/disk/by-id/md-uuid-5847a5f9:19773d99:f13783a1:b611c764

Ok, so doing something similar on my machine again has the effect of
successfully locating the RAID drive, but it still fails to find the
encrypted LVM (Auto-detection of a filesystem of /dev/mapper/waif-root
failed).  Do you have any cryptdevice lines in your /etc/default/grub,
or /boot/grub/grub.cfg, or some customisation in /etc/grub.d?

Conrad