On Tue, Aug 28, 2018 at 1:25 PM Menion <men...@gmail.com> wrote: > > Ok, I have removed the snapshot and the free expected space is here, thank > you! > As a side note: apt-btrfs-snapshot was not installed, but it is > present in Ubuntu repository and I have used it (and I like the idea > of automatic snapshot during upgrade) > This means that the do-release-upgrade does it's own job on BTRFS, > silently which I believe is not good from the usability perspective,
You are correct. DistUpgradeController.py from python3-distupgrade imports 'apt_btrfs_snapshot', which I read as coming from /usr/lib/python3/dist-packages/apt_btrfs_snapshot.py, supplied by apt-btrfs-snapshot, but I missed the fact that python3-distupgrade ships its own /usr/lib/python3/dist-packages/DistUpgrade/apt_btrfs_snapshot.py So now it looks like that cannot be easily disabled, and without the apt-btrfs-snapshot package scheduling cleanups it's not ever automatically removed? > just google it, there is no mention of this behaviour > Il giorno mar 28 ago 2018 alle ore 19:07 Austin S. Hemmelgarn > <ahferro...@gmail.com> ha scritto: > > > > On 2018-08-28 12:05, Noah Massey wrote: > > > On Tue, Aug 28, 2018 at 11:47 AM Austin S. Hemmelgarn > > > <ahferro...@gmail.com> wrote: > > >> > > >> On 2018-08-28 11:27, Noah Massey wrote: > > >>> On Tue, Aug 28, 2018 at 10:59 AM Menion <men...@gmail.com> wrote: > > >>>> > > >>>> [sudo] password for menion: > > >>>> ID gen top level path > > >>>> -- --- --------- ---- > > >>>> 257 600627 5 <FS_TREE>/@ > > >>>> 258 600626 5 <FS_TREE>/@home > > >>>> 296 599489 5 > > >>>> <FS_TREE>/@apt-snapshot-release-upgrade-bionic-2018-08-27_15:29:55 > > >>>> 297 599489 5 > > >>>> <FS_TREE>/@apt-snapshot-release-upgrade-bionic-2018-08-27_15:30:08 > > >>>> 298 599489 5 > > >>>> <FS_TREE>/@apt-snapshot-release-upgrade-bionic-2018-08-27_15:33:30 > > >>>> > > >>>> So, there are snapshots, right? The time stamp is when I have launched > > >>>> do-release-upgrade, but it didn't ask anything about snapshot, neither > > >>>> I asked for it. > > >>> > > >>> This is an Ubuntu thing > > >>> `apt show apt-btrfs-snapshot` > > >>> which "will create a btrfs snapshot of the root filesystem each time > > >>> that apt installs/removes/upgrades a software package." > > >> Not Ubuntu, Debian. It's just that Ubuntu installs and configures the > > >> package by default, while Debian does not. > > > > > > Ubuntu also maintains the package, and I did not find it in Debian > > > repositories. > > > I think it's also worth mentioning that these snapshots were created > > > by the do-release-upgrade script using the package directly, not as a > > > result of the apt configuration. Meaning if you do not want a snapshot > > > taken prior to upgrade, you have to remove the apt-btrfs-snapshot > > > package prior to running the upgrade script. You cannot just update > > > /etc/apt/apt.conf.d/80-btrfs-snapshot > > Hmm... I could have sworn that it was in the Debian repositories. > > > > That said, it's kind of stupid that the snapshot is not trivially > > optional for a release upgrade. Yes, that's where it's arguably the > > most important, but it's still kind of stupid to have to remove a > > package to get rid of that behavior and then reinstall it again afterwards.
