ubos-admin status reports "Systemd unit ... has failed"
For example, when you run
sudo ubos-admin status, you may get output:
% sudo ubos-admin status Problems: * Systemd unit snapper-cleanup.service has failed.
In this case, Systemd service
snapper-cleanup.service has failed.
In the following, replace
with the name of the unit that failed):
Try to restart the service:
% sudo systemctl restart snapper-cleanup.service
After a little while, check whether that fixed it by running
sudo ubos-admin status --problemsagain. If not, read on.
To figure out why
snapper-cleanup.servicefails to start, ask for its log:
% sudo journalctl -u snapper-cleanup.service
If that brings up way too much information, you can limit the output to, say, the last 10 minutes, by invoking it as follows:
% sudo journalctl -u snapper-cleanup.service --since -10m
That should give you enough information to figure out what the problem is.