Rationale: cleaning up after containers, which may have created their own
subvolumes.
E.g.
systemd-nspawn —boot —directory dir
where dir is a subvolume. When done with the container, deleting fir directly
doesn’t work, because we now also have a subvolume at
dir/var/lib/machines
and obviously there may be more that the container might have created.
Cleaning this all up is a bit of pain, and
btrfs subvolume delete -r dir
would solve it nicely.
Cheers,
Johannes Ernst
Blog: http://upon2020.com/
Twitter: @Johannes_Ernst
GPG key: http://upon2020.com/public/pubkey.txt
Check out UBOS, the Linux distro for personal servers I work on:
http://ubos.net/
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