> -----Original Message----- > From: linux-btrfs-owner@xxxxxxxxxxxxxxx [mailto:linux-btrfs-owner@xxxxxxxxxxxxxxx] On Behalf Of Ulli Horlacher > Sent: Wednesday, July 17, 2019 6:07 PM > To: linux-btrfs@xxxxxxxxxxxxxxx > Subject: Re: how do I know a subvolume is a snapshot? > > On Wed 2019-07-17 (08:57), misono.tomohiro@xxxxxxxxxxx wrote: > > > FYI, this problem should be fixed in mkfs.btrfs >= v4.16 since the > > top-level subvolume also gets non-empty UUID at mkfs time. > > root@fex:~# lsb_release -d > Description: Ubuntu 18.04.2 LTS > > root@fex:~# btrfs version > btrfs-progs v4.15.1 > > *sigh* > > root@fex:~# uname -a > Linux fex 4.15.0-54-generic #58-Ubuntu SMP Mon Jun 24 10:55:24 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux > > Can I use/install a newer mkfs.btrfs or do I also have to install a newer kernel version? Only newer mkfs.btrfs should be fine here.
