On 19/07/17 13:56, Uwe Kleine-König wrote:
I have:
$ cat /etc/schroot/chroot.d/unstable-amd64-default-237842
[unstable-amd64-default]
description=Debian unstable/amd64 chroot
groups=root,sbuild
root-groups=root,sbuild
profile=default
type=btrfs-snapshot
btrfs-source-subvolume=/srv/chroot/unstable-amd64-default
btrfs-snapshot-directory=/srv/chroot/unstable-amd64-default-snaps
and it works as expected. However the snapshots are created below
/run/schroot/mount/.
Is it *created* below /run/schroot/mount or is it later *mounted* below
this location?
Looking at the program logic, the session should be snapshotted under
the specified snapshot directory:
if (btrfs_snapshot && !btrfs_snapshot->get_snapshot_directory().empty())
{
std::string snapname(btrfs_snapshot->get_snapshot_directory());
snapname += "/" + clone->get_name();
btrfs_snapshot->set_snapshot_name(snapname);
}
in sbuild/sbuild-chroot-facet-session-clonable.cc. Would it be possible
to double-check exactly what is where?
An unrelated FYI: On the schroot master branch, Btrfs snapshot support
has been removed. The repeated Btrfs filesystem unbalancing with
intensive snapshotting made this feature unsuitable for production use.
I will be replacing it with ZFS snapshot support.
Regards,
Roger
