[Nut-upsuser] NUT support for APC BackUPS Pro 900VA
gheskett at wdtv.com
Fri Jan 22 05:46:14 UTC 2016
On Thursday 21 January 2016 17:36:15 Juergen Edner wrote:
> Hi all,
> I'm trying to configure Nut to connect to an APC BackUPS Pro 900VA.
> This ups uses a serial port on which _simple_ or _smart_ signaling
> should be spoken. I've connected the UPS to a serial port using the
> original 940_0128A cable from APC.
> Unfortunately I've not yet managed to read any data from the ups.
> If I try to load the apcsmart driver it tells me that it cannot
> communicate with the ups.
> Does anyone be able to configure Nut so that the mentioned BackUPS
> is recognized properly. If someone could give me a hint how I need
> to configure nut, I would appreciate it.
> Just to mention, Nut is already working with older SmartUPS devices
> without any problems. So it isn't a general but a device specific
> Thank you in advance!
This might not be helpfull, but is udev now setting the permissions on
that serial port restrictive enough that nut cannot use it?
After heyu was refused at midnight 1/1/16 when I have a cron job upload
the next years schedule for some lights on the front deck, I
found /dev/ttyUSB0 was set to root:root for ownership, and 0700
permissions. Meaning only root could use it.
I just had a similar situation using heyu on /dev/ttyUSB0. I could not
find the udev rule that had changed it, so I took the next best route,
got root and put a chmod and a chown of that port in my /etc/rc.local
file, which runs last at bootup. And heyu is once again a happy camper.
This might not be your problem, but its something to check.
Cheers, Gene Heskett
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>
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