Actually the SW-RAID/LVM support should be no-brainers, otherwise it's not really
worth the effort. But we should check out what can be done nowadays and then
document the according workflow (if not done already).
I personally don't want to work on this feature, so I'll add an check for
$SWRAID to grml2hd which disables the bootmanager dialog then, keeping the
release-stopper keyword until this check is implemented.