>From the last comments in: https://github.com/systemd/systemd/issues/22234
the problem is due to an incompatibility of the new versions of systemd with older ones. In fact the container was running ubuntu focal, with systemd_245.4-4ubuntu3.15, and the host was running ubuntu focal with systemd 249.9-0ubuntu2. So the problem should be ideally solved by including the patch in: https://github.com/systemd/systemd/commit/e8cf09b2a2ad0d48e5493050d54251d5f512d9b6 also in older versions of systemd. ** Bug watch added: github.com/systemd/systemd/issues #22234 https://github.com/systemd/systemd/issues/22234 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1959475 Title: "machinectl shell" connections immediately terminated Status in systemd package in Ubuntu: New Bug description: The command "machinectl shell" does not work in systemd 249.9-0ubuntu2: $ sudo machinectl shell ns-xxx Connected to machine ns-xxx. Press ^] three times within 1s to exit session. Connection to machine ns-xxx terminated. The issue seems to be described here: https://forum.manjaro.org/t/the-machinectl-shell-command-stopped-working-after-systemd-upgrade-to-250-2-1/99899 https://github.com/systemd/systemd/issues/22234 and solved here: https://github.com/systemd/systemd/commit/e8cf09b2a2ad0d48e5493050d54251d5f512d9b6 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1959475/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp