On 3/23/26 7:36 PM, David C Rankin wrote:
On 3/23/26 5:03 AM, Łukasz Michalski wrote:
Hi,
A little warning after my 3h debugging nut debugging session:
After upgrading nut from 2.8.2 to 2.8.4 /usr/lib/systemd/system-
shutdown/nutshutdown script will stop working if MODE in /etc/nut/
ups.conf is not set.
I have a running standalone configuration with nut driver, server and
monitor on single machine and I didn't set MODE in ups.conf.
Due to this commit:
https://github.com/jimklimov/nut/commit/
cccbd8774b1f7d4c749c114e649e6924cba2adc6
in 2.8.4 without MODE system shutdown will not issue a shutdown
command to UPS anymore.
Regards,
Łukasz
I upgraded a few days ago and going through old/new configs just
happen to catch the unset value and I changed it to standalone before
starting all the services (I was upgrading from and OLD 2.7 version
with config still in /etc/ups)
The wiki should be updated to note this. I just went through the
wiki setup and it does not mention the MODE setting at all.
There were a number of tenuous config changes with my update. But
with MODE set, the version has been working well, though I did have a
commanded shutdown when the driver lost contact with the UPS (and this
was a server). This seemed to be the result of removal/uninstall of
the prior version leaving the USB device in an inconsistent state.
I've reported it and it seems that this will be fixed in 2.8.5, so no
need to update wiki.
https://github.com/networkupstools/nut/issues/3364
Regards,
Łukasz