I can confirm the problem, on trusty. I believe I've even confirmed another ticket that is open already on LP somewhere.
First comment, this is not about RAID. Simple multi-device btrfs are affected as well. I will adjust the title of the ticket accordingly. Second comment, it is highly unlikely for this to be a problem in initramfs. The udisks2 package seems a much more likely candidate.
I can confirm the problem, on trusty. I believe I've even confirmed another ticket that is open already on LP somewhere.
First comment, this is not about RAID. Simple multi-device btrfs are affected as well. I will adjust the title of the ticket accordingly. Second comment, it is highly unlikely for this to be a problem in initramfs. The udisks2 package seems a much more likely candidate.