Here i've talked about raid1 because it is what i've tested myself, but
since LVM can handle raid0/1/4/5/6/10, perhaps the same arguments apply
also to the other raid types.
For example i've noticed that the initramfs' hook from mdadm takes care
of loading all the raid modules:
-------------------------------
for module in linear multipath raid0 raid1 raid456 raid5 raid6 raid10; do
force_load $module
done
-------------------------------
Maybe should also lvm2's hook load those modules?
And in fact if both lvm2 and mdadm are installed, what i'm reporting
here doesn't happen: raid modules are loaded by mdadm's hook.
Moreover, if i understand correctly, the grub2 package uploaded to
unstable 4 days ago (2.02-beta3) is the first that supports booting from
an LVM raid1: it would be wonderful if that setup could be supported out
of the box in Debian.
