Edit file File name : systemd-nspawn@.service Content :# SPDX-License-Identifier: LGPL-2.1+ # # This file is part of systemd. # # systemd is free software; you can redistribute it and/or modify it # under the terms of the GNU Lesser General Public License as published by # the Free Software Foundation; either version 2.1 of the License, or # (at your option) any later version. [Unit] Description=Container %i Documentation=man:systemd-nspawn(1) PartOf=machines.target Before=machines.target After=network.target systemd-resolved.service RequiresMountsFor=/var/lib/machines [Service] ExecStart=/usr/bin/systemd-nspawn --quiet --keep-unit --boot --link-journal=try-guest --network-veth -U --settings=override --machine=%i KillMode=mixed Type=notify RestartForceExitStatus=133 SuccessExitStatus=133 WatchdogSec=3min Slice=machine.slice Delegate=yes TasksMax=16384 # Enforce a strict device policy, similar to the one nspawn configures when it # allocates its own scope unit. Make sure to keep these policies in sync if you # change them! DevicePolicy=closed DeviceAllow=/dev/net/tun rwm DeviceAllow=char-pts rw # nspawn itself needs access to /dev/loop-control and /dev/loop, to implement # the --image= option. Add these here, too. DeviceAllow=/dev/loop-control rw DeviceAllow=block-loop rw DeviceAllow=block-blkext rw # nspawn can set up LUKS encrypted loopback files, in which case it needs # access to /dev/mapper/control and the block devices /dev/mapper/*. DeviceAllow=/dev/mapper/control rw DeviceAllow=block-device-mapper rw [Install] WantedBy=machines.target Save