On upgrade I agreed to: :: Replace network-ups-tools with community/nut? [Y/n] network-ups-tools-2.7.4-5 [removal] nut-2.7.4-1 (both same version of package) However, after install, the nut-server.service would not start. Here are the logs for the last start before update and then the failure after the update: -- Reboot -- May 23 03:00:55 2pi systemd[1]: Starting Network UPS Tools - power devices information server... May 23 03:00:56 2pi upsd[474]: fopen /var/state/ups/upsd.pid: No such file or directory May 23 03:00:56 2pi upsd[474]: listening on 127.0.0.1 port 3493 May 23 03:00:56 2pi upsd[474]: listening on 127.0.0.1 port 3493 May 23 03:00:56 2pi upsd[474]: listening on ::1 port 3493 May 23 03:00:56 2pi upsd[474]: listening on ::1 port 3493 May 23 03:00:56 2pi upsd[474]: Connected to UPS [stp_ups]: usbhid-ups-stp_ups May 23 03:00:56 2pi upsd[474]: Connected to UPS [stp_ups]: usbhid-ups-stp_ups May 23 03:00:56 2pi upsd[475]: Startup successful May 23 03:00:56 2pi systemd[1]: Started Network UPS Tools - power devices information server. May 29 03:55:42 2pi upsd[475]: mainloop: Interrupted system call May 29 03:55:42 2pi upsd[475]: Signal 15: exiting May 29 03:55:42 2pi systemd[1]: Stopping Network UPS Tools - power devices information server... May 29 03:55:42 2pi systemd[1]: nut-server.service: Succeeded. May 29 03:55:42 2pi systemd[1]: Stopped Network UPS Tools - power devices information server. -- Reboot -- May 29 03:58:08 2pi systemd[1]: Starting Network UPS Tools - power devices information server... May 29 03:58:08 2pi upsd[480]: fopen /run/nut/upsd.pid: No such file or directory May 29 03:58:08 2pi upsd[480]: /etc/nut/upsd.conf is world readable May 29 03:58:08 2pi upsd[480]: /etc/nut/upsd.conf is world readable May 29 03:58:08 2pi upsd[480]: listening on 127.0.0.1 port 3493 May 29 03:58:08 2pi upsd[480]: listening on ::1 port 3493 May 29 03:58:08 2pi upsd[480]: listening on 127.0.0.1 port 3493 May 29 03:58:08 2pi upsd[480]: listening on ::1 port 3493 May 29 03:58:08 2pi upsd[480]: Warning: no UPS definitions in ups.conf May 29 03:58:08 2pi upsd[480]: Fatal error: at least one UPS must be defined in ups.conf May 29 03:58:08 2pi upsd[480]: Network UPS Tools upsd 2.7.4 May 29 03:58:08 2pi upsd[480]: Warning: no UPS definitions in ups.conf May 29 03:58:08 2pi upsd[480]: Fatal error: at least one UPS must be defined in ups.conf May 29 03:58:08 2pi systemd[1]: nut-server.service: Control process exited, code=exited, status=1/FAILURE May 29 03:58:08 2pi systemd[1]: nut-server.service: Failed with result 'exit-code'. May 29 03:58:08 2pi systemd[1]: Failed to start Network UPS Tools - power devices information server. May 29 04:09:14 2pi systemd[1]: Starting Network UPS Tools - power devices information server... May 29 04:09:14 2pi systemd[1]: nut-server.service: Control process exited, code=exited, status=1/FAILURE May 29 04:09:14 2pi systemd[1]: nut-server.service: Failed with result 'exit-code'. May 29 04:09:14 2pi systemd[1]: Failed to start Network UPS Tools - power devices information server. There is the very same definition of the ups in ups.conf, e,g, [stp_ups] driver = usbhid-ups port = auto desc = "stp CP825 UPS" Removing the community package and reinstalling the old package works fine, e,g, 04:16 2pi:~/.../pkg/x86_64/nut> sc restart nut-server 04:17 2pi:~/.../pkg/x86_64/nut> upsc stp_ups battery.charge: 100 battery.charge.low: 10 battery.charge.warning: 20 battery.mfr.date: CPS battery.runtime: 3180 battery.runtime.low: 300 battery.type: PbAcid battery.voltage: 13.4 battery.voltage.nominal: 12 device.mfr: CPS device.model: UPS CP825 device.type: ups driver.name: usbhid-ups driver.parameter.pollfreq: 30 driver.parameter.pollinterval: 2 driver.parameter.port: auto driver.parameter.synchronous: no driver.version: 2.7.4 driver.version.data: CyberPower HID 0.4 driver.version.internal: 0.41 input.transfer.high: 140 input.transfer.low: 100 input.voltage: 122.0 input.voltage.nominal: 120 output.voltage: 122.0 ups.beeper.status: enabled ups.delay.shutdown: 20 ups.delay.start: 30 ups.load: 15 ups.mfr: CPS ups.model: UPS CP825 ups.productid: 0501 ups.realpower.nominal: 450 ups.status: OL ups.test.result: Done and passed ups.timer.shutdown: -60 ups.timer.start: 0 ups.vendorid: 0764 Why doesn't the new nut from community work? -- David C. Rankin, J.D.,P.E.