Comment 15 for bug 563902

That doesn't sound weird to me at all, it's exactly what I expected to hear based on my own testing here. :)

So if /dev/mapper devices get mounted correctly in the presence of snapshots, I think we can conclude that there's no bug in lvm2/mountall wrt snapshots. There seems to be a bug preventing /dev/mapper/vg0-opt from working for you, but that's unrelated to snapshotting and seems to be tracked as bug #557909; there's possibly a bug in some unidentified component that wrongly changes /dev/mapper entries to UUID in /etc/fstab on upgrade; and there's a need to document in the release notes that you shouldn't use UUID= for lvs in /etc/fstab.

Have I covered everything?