Comment 62 for bug 1003309

Fran├žois Marier (fmarier) wrote :

My problem (encrypted RAID1 drive refusing to boot when degraded) was fixed by adding a new initramfs boot script to start the RAID array before cryptsetup runs:

http://feeding.cloud.geek.nz/posts/the-perils-of-raid-and-full-disk-encryption-on-ubuntu/