Public bug reported:
Nut seems to have three systemd units. When nut.conf contains
"mode=netclient", there is a lengthy delay to system startup / shutdown
because nut-driver cannot start/stop (the UPS is remote, so the user
will have either not configured this file, or it will not find an
attached UPS where one has been configured). Overall, this is not a very
serious bug, but it adds >90 seconds to reboot time...long enough that I
eventually got annoyed enough to spend time figuring out why...
Current outcome:
nut-server - attempts to start/stop, detects mode=netclient, writes status
message and moves on (OK)
nut-driver - attempts to start/stop, configuration error, waits a long time
before failing to start/stop (problem)
nut-client - attempts to start/stop, succeeds as required (OK).
Desired outcome:
nut-server - attempts to start/stop, detects mode=netclient, writes status
message and moves on
nut-driver - attempts to start/stop, detects mode=netclient, writes status
message and moves on
nut-client - attempts to start/stop, succeeds as required
Log output /var/log/syslog:
Oct 27 18:28:48 yggdrasil systemd[1]: nut-driver.service: Control process
exited, code=exited, status=1/FAILURE
Oct 27 18:28:48 yggdrasil systemd[1]: nut-driver.service: Failed with result
'exit-code'.
Workaround:
This can be worked around by removing the nut package and only
installing nut-client, but the configuration files suggest that setting
mode=netclient should work. At the very least, the comment in nut.conf
above this line should be updated to state that you should only install
nut-client if you're planning to configure with mode=netclient.
Ubuntu Version:
20.10, 20.04 definitely...probably as long as systemd has been around.
Package Version:
2.7.4-12ubuntu1
** Affects: nut (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1901659
Title:
nut-driver attempts to start when mode=netclient in nut.conf
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