Bug#841423: LVM: raid1 kernel module not loaded

Cesare Leonardi celeonar at gmail.com
Thu Oct 20 22:17:40 UTC 2016


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.



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