On Wed, Jul 17, 2019 at 1:14 PM Nikolay Borisov <nbori...@suse.com> wrote: > > > > On 17.07.19 г. 12:11 ч., Ulli Horlacher wrote: > > On Wed 2019-07-17 (11:24), Nikolay Borisov wrote: > >> > >> > >> On 17.07.19 3. 2:24 G., Ulli Horlacher wrote: > >> > >>> I thought, I can recognize a snapshot when it has a Parent UUID, but this > >>> is not true for snapshots of toplevel subvolumes: > >> > >> As you have asked this before - in my testing this is not true. > > > > It is true on all my SUSE and Ubuntu systems, for all versions. > > That's strange, as I've shown in the previous thread, using the latest > master doesn't exhibit this behavior.
I doubt you are not aware that distributions rarely use latest master. Actually I have here openSUSE Tumbleweed; root top level subvolume does not have UUID but if I create new filesystem *now* it does. btrfs tools have been updated since initial installation. Better question would be - is it possible to fix it for existing filesystems that had been created using old tools?
