I have mixed feelings about this.
I was about to report a similar bug for grub as the move to UUID
everywhere currently prevents my edgy system from booting (I can boot if
I put back the old "root=/dev/mapper/...." argument in grub). I am
marking this as also affecting grub, for the record.
On the other hand, I find UUID better than labels or lvm volume names as
they are more likely to be uniq. A while ago I put a friend's hard drive
in my computer to get its data back, we where both using LVM with
identical volume names, which was a bit problematic (I don't remember
the details though). UUIDS might help in this area, but pushing the user
to choose non-clashing LVM names might be enough.
** Also affects: grub (Ubuntu)
Importance: Untriaged
Status: Unconfirmed
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No need to convert LVM volumes to UUIDs
https://launchpad.net/bugs/54002
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