[Nut-upsuser] Nut on Mac mini

Charles Lepple clepple at gmail.com
Tue Feb 21 00:14:49 UTC 2012

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On Feb 20, 2012, at 9:42 AM, Peter Gosztonyi wrote:

> Hi,
> I have a Mac mini running Lion, a windows 2008 vm and a Synology Nas. I want to connect the two devices to an APC Back-up 550 which has a USB connection. The Nas can be connect to a NUT, hence my endavour to install NUT as a server on Lion. Not sure yet if i need NUT on the Windows VM or if the Mac can just suspend the VM.

A quick search says the Synology NAS can be a NUT server - true?

> The Mac recognized the UPS automatically and i tried to install NUT, NUT-USB and NUT-CGI. I have to say you have to be quite technical to do anything like this on macs. Nothing for the average users, by all means. It doesn't make it easier that there is a huge lack on documentation and example configs.

There was a pretty huge lack of interest in NUT on OS on our mailing lists until your email came in :-)

> But anyway, on one of the websites, it noted that there can be a conflict with NUT-USB and later ios if the ios recognizes the ups as well. Unfortunately i didn't find anything that explains how to solve the conflict. Any ideas? I use on all of them the latest versions.

The short answer is that there is no easy way to make NUT talk to a USB UPS on OS X the same way as on Linux or *BSD.

So if you can't beat 'em, join 'em. I started looking at a way for NUT to communicate with the OS X UPS manager, but that API is a bit of a mess as well. It seems possible, but complicated to code up. If it works, it should be simple for end users to install, but I won't have much time to devote to coding that until much later this year.

Your best bet might be to configure the Mac to be a client to NUT on the NAS. Suspending the VM is going to depend on what virtualization software you are using, but there is a beta of a Windows NUT client on networkupstools.org if you want to go that route.

> Thanks,
> Pete
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Charles Lepple
clepple at gmail

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