Bug#467127: post-install fails with grub-probe: error: Cannot get the real path of `/dev/sda'

[Bryan Donlan]

Package: grub-pc
Version: 1.96+20080219-2
Severity: important

grub-pc's post-install fails on 1.96+20080219-2 with:

Setting up grub-pc (1.96+20080219-2) ...
grub-probe: error: Cannot get the real path of `/dev/sda'
dpkg: error processing grub-pc (--configure):
 subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
 grub-pc

I do not actually have any scsi drives, and /dev/sda does not exist.

System information removed as I'm reporting the bug from a different
machine (email's not configured on the one in question); let me know if
you need anything specific.