Bug#788173: rescue-mode: kfreebsd rescue fails with can't create /dev/md

[Michael Gilbert <mgilbert@debian.org>]

package: rescue-mode
version: 1.51
severity: important
x-debbugs-cc: debian-bsd@lists.debian.org

Adding the line "set kFreeBSD.rescue/enable=true" in a grub entry and
booting the kfreebsd installer fails when executing rescue-mode.  The
error is:

mkdir: can't create directory '/dev/md': Operation not supported

/dev is mounted rw and also doing mkdir manually fails the same.

Best wishes,
Mike