Investigating the issue, udev fails to enumerate devices in the lxc environment when udev_enumerate_add_match_is_initialized is called. The same test program works in a focal instance.
Discussing the issue on the LXD channel it was raised that the systemd udev changes in 247 could be creating problems. The network-manager 1.26 version works because the udev support was wrongly disabled, which was fixed in that commit https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/commit/78dc57d8 ** Package changed: network-manager (Ubuntu) => systemd (Ubuntu) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1914062 Title: NetworkManager-wait-online.service in 1.28.0-2ubuntu1 fails to start in LXC Status in systemd package in Ubuntu: Triaged Bug description: This regresses systemd's autopkgtest because it expects the system in the container to reach running state, but the system ends up in degraded state due to the service failing. https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-hirsute/hirsute/amd64/s/systemd/20210112_185712_ff570@/log.gz ... ====================================================================== FAIL: test_no_failed (__main__.ServicesTest) No failed units ---------------------------------------------------------------------- Traceback (most recent call last): File "/tmp/autopkgtest.fFC3Lw/build.xLc/real-tree/debian/tests/boot-and-services", line 68, in test_no_failed self.assertEqual(failed, []) AssertionError: Lists differ: ['● NetworkManager-wait-online.service loa[42 chars]ine'] != [] First list contains 1 additional elements. First extra element 0: '● NetworkManager-wait-online.service loaded failed failed Network Manager Wait Online' + [] - ['● NetworkManager-wait-online.service loaded failed failed Network Manager ' - 'Wait Online'] ---------------------------------------------------------------------- Ran 23 tests in 4.435s ... Reproducible locally by installing n-m from -proposed, then restarting the system in the LXC container. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1914062/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
