An update to the comment above. We have found out a sequence of commands that seems to reproduce the issue reliably: in the spread session started by the command from the comment above, if you type this:
systemctl stop 'snap-disabled\x2dsvcs\x2dkept-x1.mount' systemctl daemon-reload # The two commands above are just to ensure that the unit is in the unmounted state systemctl start 'snap-disabled\x2dsvcs\x2dkept-x1.mount' systemctl daemon-reload systemctl stop 'snap-disabled\x2dsvcs\x2dkept-x1.mount' systemctl start 'snap-disabled\x2dsvcs\x2dkept-x1.mount' The last command will hang for 90 seconds, after which the job will fail and `journalctl -xe` will show that it failed because systemd timed out while activating a loop device. In reality, the loop device is already there and is available, but somehow the `deamon-reload` operation broke the internal status. If you remove the line with `systemctl daemon-reload` (or, on the other hand, add one such line even after the `stop` command), then everything proceeds normally. I'm EOD now, but tomorrow I'll verify if this happens on classic too. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1949089 Title: systemd randomly fails to activate mount units in Ubuntu Core 18 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1949089/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs