[Nut-upsuser] NUT-HAL (for use with USB UPS's and Gnome)

Charles Lepple clepple at gmail.com
Thu Nov 21 00:20:40 UTC 2013

On Nov 18, 2013, at 10:39 AM, Ben Kamen wrote:

> My first attempt to post this bounced -- this is a 2nd try.

Sorry about that - Alioth, the server that hosts the lists, was down due to disk failure:


> I've recently installed a CyberPower OR500 on a CentOS 6.4 system.
> nut comes RPM'd as nut-hal -- and I've played a little with it - but I'm trying to figure out
> just what it provides at that point. (looking at the docs, I'm not quite sure)

The idea was that the HAL-based drivers would make the UPS appear like a battery to the GNOME power management software, but then HAL was deprecated. So we never really finished the documentation.

> I'd like NUT on this system to allow my NUT master server to just monitor and email notification as the system
> NUT-HAL is running on is standalone on its UPS and that's fine with me.
> I just want to know when the system has power issues and work NUT's monitoring in with my Munin master server as well.
> Should I move to the full NUT version on this system (and switch to Serial and not USB?)

No need to switch to serial if USB is working - there should be a nut-usb package or similar. You will probably have to remove nut-hal to install nut-usb. The nut+upsd+upsmon solution is mutually exclusive with nut-hal, but they use the same device-specific code, and it sounds like your device is compatible.

Charles Lepple
clepple at gmail

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