Comment 4 for bug 1585016

Looks like after the recommission, we pick up the by-id/<lvm-id> of each disk that belonged to the LVM, but not its serial number. This confuses curtin when we got to deploy, which expects to see a /dev/<device> path (not the ephemeral LVM ID) or a serial number.

I think if we store the /dev/<device> path instead of of the by-id path, *if and only if* we didn't find a serial number on the disk, that will make MAAS more reliable when operating against a set of virtual disks.