[Nut-upsuser] Problem installing NUT on 16.04

Jack McGee
Sat, 10 Dec 2016 14:10:50 -0000

On 12/10/2016 07:42 AM, Charles Lepple wrote:
>> On Dec 9, 2016, at 10:40 PM, Jack McGee wrote:
>>
>> ? nut-server.service - LSB: Network UPS Tools initscript
>>     Loaded: loaded (/etc/init.d/nut-server; bad; vendor preset:
enabled)
>>     Active: active (running) since Fri 2016-12-09 13:48:34 CST; 7h ago
>>       Docs: man:systemd-sysv-generator(8)
>>    Process: 1886 ExecStart=/etc/init.d/nut-server start (code=exited,
status=0/SUCCESS)
>>     CGroup: /system.slice/nut-server.service
>>             ??2082 /lib/nut/usbhid-ups -a CyberUPS1
>>
>> Dec 09 13:48:33 amethi systemd[1]: Starting LSB: Network UPS Tools
initscript...
>> Dec 09 13:48:33 amethi nut-server[1886]:  * Starting NUT - power
devices information server and drivers
>> Dec 09 13:48:34 amethi usbhid-ups[2082]: Startup successful
>> Dec 09 13:48:34 amethi upsd[2083]: not listening on 192.168.0.105 port
3493
>> Dec 09 13:48:34 amethi upsd[2083]: listening on 127.0.0.1 port 3493
>> Dec 09 13:48:34 amethi upsd[2083]: no listening interface available
> Wait, when you say "NUT cannot connect to the UPS", which part
are you referring to?
>
> The error you posted before from the driver looked like something else was
already connected to the UPS. Only one copy of the driver can be running, and
the log quoted above shows that it is (PID 2082). There is supposed to be logic
in the driver to detect that a copy is already running, and to send a
termination signal to that before trying to continue.
>
> However, if you get a "Connection Refused" error, then upsd is
not listening on port 3493 yet. The last three lines above indicate that it
couldn't bind to 192.168.0.105, so if a restart fixes that, then I guess
systemd isn't properly waiting for the network to come up. Maybe someone
else has a suggestion for that, but for me, the path of least resistance would
be to listen on 0.0.0.0 and use a firewall rule to limit connections to that
subnet.


sorry, after reboot I started seeing this error in terminal:

Broadcast message from nut at amethi (somewhere) (Sat Dec 10 08:05:01 2016):

UPS CyberUPS1 at localhost is unavailable


I had a similar issue I think when Ubuntu moved to SystemD with Mythtv
not waiting to start until network was up and then erroring.  I will see
if I can recall what I did to fix that and apply it to NUT and see if
that fixes it.