[Nut-upsuser] NUT no longer works after 2.7 -> 2.8 upgrade
Simon Wilson
simon at simonandkate.net
Fri Dec 2 12:24:46 GMT 2022
Hi Bill,
OK your test 1 and 2 line up with my ask for test 1 :)
Have another read of the Test 2 ask please if you can:
>> 2. Second test:- copy the edited
>> /etc/systemd/system/nut-driver at .service.d/environ.conf to
>> /etc/systemd/system/nut-server.service.d/environ.conf. So you
>> should at that point have both locations with a file saying
>> [Service]
>> Environment=NUT_STATEPATH=/run/nut
>> Then comment out STATEPATH line (back to default) in upsd.conf and
>> restart nut-server - does it still start, and does it still pop a
>> "Could not find PID file '/var/run/upsd.pid'" message? That tests
>> whether the drop-in file is a better, more consistent fix for now
>> (until the packages are resolved). Calling the nut-server process
>> with that variable set for upsd *even before it reads upsd.conf*
>> may remove the first error 'Could not find PID file
>> '/var/run/upsd.pid''
Your test 3 and 4 are not quite what is needed, unless you did copy
the environ.conf file into /etc/systemd/system/nut-server.service.d/
but didn't say so?
Could you please copy your nut-driver's environ.conf file to
/etc/systemd/system/nut-server.service.d/ THEN comment out the
STATEPATH line and see if nut-server starts.
Why am I asking this>
At the moment you are using one fix to resolve the driver (an
environ.conf file) and a different fix to get nut-server going
(STATEPATH). Trying to see if one fix (the environ.conf file fix) will
resolve both driver and server, and in doing so also get rid of the
error message 'Could not find PID file '/var/run/upsd.pid''.
Simon
----- Message from Bill Gee <bgee at campercaver.net> ---------
Date: Fri, 2 Dec 2022 06:07:20 -0600
From: Bill Gee <bgee at campercaver.net>
Subject: Re: [Nut-upsuser] NUT no longer works after 2.7 -> 2.8 upgrade
To: nut-upsuser at alioth-lists.debian.net
> Test 1 - I moved the environ.conf file to /tmp. I ran systemctl
> daemon-reload, then restarted nut-driver at cyberpower.service. Results:
>
> =====================================
> [root at mythtv nut-driver at .service.d]# systemctl restart
> nut-driver at cyberpower.service
> Job for nut-driver at cyberpower.service failed because the control
> process exited with error code.
> See "systemctl status nut-driver at cyberpower.service" and "journalctl
> -xeu nut-driver at cyberpower.service" for details.
> [root at mythtv nut-driver at .service.d]# systemctl --full --no-pager
> status nut-driver at cyberpower.service
> ● nut-driver at cyberpower.service - Network UPS Tools - device driver
> for NUT device 'cyberpower'
> Loaded: loaded (/usr/lib/systemd/system/nut-driver at .service;
> enabled; preset: disabled)
> Drop-In: /etc/systemd/system/nut-driver at cyberpower.service.d
> └─nut-driver-enumerator-generated-checksum.conf,
> nut-driver-enumerator-generated.conf
> Active: activating (auto-restart) (Result: exit-code) since Fri
> 2022-12-02 05:54:03 CST; 2s ago
> Process: 10732 ExecStartPre=/usr/bin/systemd-tmpfiles --create
> /usr/lib/tmpfiles.d/nut-client.conf (code=exited, status=0/SUCCESS)
> Process: 10733 ExecStart=/bin/sh -c
> NUTDEV="`/usr/libexec/nut-driver-enumerator.sh
> --get-device-for-service cyberpower`" && [ -n "$NUTDEV" ] || { echo
> "FATAL: Could not find a NUT device section for service unit
> cyberpower" >&2 ; exit 1 ; } ; /usr/sbin/upsdrvctl start "$NUTDEV"
> (code=exited, status=1/FAILURE)
> CPU: 80ms
> =========================================
>
> It seems that the nut device driver requires environ.conf to be present.
>
> Test 2 - I moved environ.conf back to the correct place. I edited
> the file to use "Environment=NUT_STATEPATH=/run/nut". I did a
> daemon-reload then started the nut-driver. It worked - no errors.
>
> Test 3 - I modified /etc/ups/upsd.conf to comment out the STATEPATH
> line. I restarted nut-server.service. It failed.
>
> ================================
> [root at mythtv ups]# systemctl --full --no-pager status nut-server
> ● nut-server.service - Network UPS Tools - power devices information server
> Loaded: loaded (/usr/lib/systemd/system/nut-server.service;
> enabled; preset: disabled)
> Active: active (running) since Fri 2022-12-02 06:00:54 CST; 13s ago
> Main PID: 11452 (upsd)
> Tasks: 1 (limit: 9482)
> Memory: 728.0K
> CPU: 5ms
> CGroup: /system.slice/nut-server.service
> └─11452 /usr/sbin/upsd -F
>
> Dec 02 06:00:54 mythtv.billgee.local nut-server[11452]: listening on
> ::1 port 3493
> Dec 02 06:00:54 mythtv.billgee.local nut-server[11452]: listening on
> 127.0.0.1 port 3493
> Dec 02 06:00:54 mythtv.billgee.local upsd[11452]: listening on ::1 port 3493
> Dec 02 06:00:54 mythtv.billgee.local upsd[11452]: listening on
> 127.0.0.1 port 3493
> Dec 02 06:00:54 mythtv.billgee.local nut-server[11452]: /var/run is
> world readable
> Dec 02 06:00:54 mythtv.billgee.local upsd[11452]: /var/run is world readable
> Dec 02 06:00:54 mythtv.billgee.local upsd[11452]: Can't connect to
> UPS [cyberpower] (usbhid-ups-cyberpower): No such file or directory
> Dec 02 06:00:54 mythtv.billgee.local nut-server[11452]: Can't
> connect to UPS [cyberpower] (usbhid-ups-cyberpower): No such file or
> directory
> Dec 02 06:00:54 mythtv.billgee.local nut-server[11452]: Running as
> foreground process, not saving a PID file
> Dec 02 06:00:54 mythtv.billgee.local upsd[11452]: Running as
> foreground process, not saving a PID file
> ===================================
>
> Test 4 - I uncommented the STATEPATH line in upsd.conf. It points
> to /run/nut. I restarted nut-server. Success.
>
>
> ===============
> Bill Gee
>
> On 12/1/22 18:35, Simon Wilson via Nut-upsuser wrote:
>> Resending as original was too big for list acceptance.
>>
>> Hi Bill,
>>
>> /etc/systemd/system/nut-driver at .service.d/environ.conf sets the
>> nut-driver service's environment variable, such that it sees a
>> workable NUT_STATEPATH of /var/run/nut when upsdrvctl is run by the
>> service, regardless of what is set in upsd.conf, and explains why
>> the driver worked yesterday but upsd didn't.
>>
>> Tests which may be interesting:
>>
>> 1. First test:- move nut-driver's environ.conf file to somewhere
>> else temporarily; leave upsd.conf STATEPATH uncommented saying
>> /run/nut; restart nut-driver at cyberpower.service; and see if it
>> runs. This tests to see if it *needs* the drop-in service file *or*
>> will work with only STATEPATH explicitly set in upsd.conf to
>> /run/nut. If this prevents the driver from working, put the
>> environ.conf file back (but edit it, it should say /run/nut, not
>> /var/run/nut)
>>
>> 2. Second test:- copy the edited
>> /etc/systemd/system/nut-driver at .service.d/environ.conf to
>> /etc/systemd/system/nut-server.service.d/environ.conf. So you
>> should at that point have both locations with a file saying
>> [Service]
>> Environment=NUT_STATEPATH=/run/nut
>> Then comment out STATEPATH line (back to default) in upsd.conf and
>> restart nut-server - does it still start, and does it still pop a
>> "Could not find PID file '/var/run/upsd.pid'" message? That tests
>> whether the drop-in file is a better, more consistent fix for now
>> (until the packages are resolved). Calling the nut-server process
>> with that variable set for upsd *even before it reads upsd.conf*
>> may remove the first error 'Could not find PID file
>> '/var/run/upsd.pid''
>>
>> And definitely document any changes you make to your setup as
>> subsequent package releases will likely change all of this :)
>>
>> Couple more comments inline below.
>>
>> Simon
>>
>>
>> ----- Message from Bill Gee <bgee at campercaver.net> ---------
>> Date: Thu, 1 Dec 2022 16:49:14 -0600
>> From: Bill Gee <bgee at campercaver.net>
>> Subject: Re: [Nut-upsuser] NUT no longer works after 2.7 -> 2.8 upgrade
>> To: nut-upsuser at alioth-lists.debian.net
>>
>>> Checking now - There is a file called
>>> /etc/systemd/system/nut-driver at .service.d/environ.conf. Its
>>> contents are
>>>
>>> ==========================
>>> [root at mythtv nut-driver at .service.d]# ll
>>> total 8
>>> -rw-r--r-- 1 root root 49 Nov 29 18:14 environ.conf
>>> -rw-r--r-- 1 root root 81 Nov 30 18:58
>>> nut-driver-enumerator-generated-checksum.conf
>>>
>>> [root at mythtv nut-driver at .service.d]# cat environ.conf
>>> [Service]
>
> [snip]
>
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----- End message from Bill Gee <bgee at campercaver.net> -----
--
Simon Wilson
M: 0400 12 11 16
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