[Nut-upsuser] Problem with ups-dummy driver (repeater mode)

Charles Lepple clepple at gmail.com
Fri Jan 2 01:57:08 UTC 2015

On Jan 1, 2015, at 8:23 PM, Charles Lepple <clepple at gmail.com> wrote:

> On Jan 1, 2015, at 4:57 PM, Jonathan Gammell <jon.gammell at utoronto.ca> wrote:
>>   [ups]
>>       driver = dummy-ups
>>       port = eaton1
>>       desc = "Dummy UPS"
> There is a typo in the specification of "port =" in the dummy-ups man page, but your configuration file is effectively looking for a simulation file named 'eaton1'. The presence of an "@" character enables repeater mode. If you change this to 'port = eaton1 at localhost', things should work as you described.

I should also mention a pair of options that were introduced in 2.7.2: maxretry and retrydelay.


I haven't used dummy-ups in production (I just use the other mode to simulate an UPS) but I suspect there might be a race condition if upsdrvctl starts dummy-ups before both usbhid-ups instances connect to upsd.

Not sure if there is a backport of NUT 2.7.2 to 12.04, but it might be worth looking into. Or you could manually add something to rc.local that restarts dummy-ups if it is not running, but usbhid-ups is.

Charles Lepple
clepple at gmail

More information about the Nut-upsuser mailing list