[Apcupsd-users] Mac OS X El Capitan (10.11) not compatible with apcupsd

[Kurtis R. <kr...@sk...>]

I decided to install the Mac OS X El Capitan beta release. That broke a few
things but the only one I haven't been able to fix is apcupsd. One problem
is that /sbin is now locked down by the new "rootless" security initiative.
That was easy enough to deal with by hand editing a couple of Makefiles and
running "./configure --sbindir=/usr/local/sbin".

The second problem is more problematic. OS X insists on opening the USB
device for the UPS in exclusive mode which causes apsupsd to write this to
stderr:

libusb: error [darwin_claim_interface] USBInterfaceOpen: another process
has device opened for exclusive access


I attempted to disable powerd (and thus ioupsd) by running

launchctl unload -w /System/Library/LaunchDaemons/com.apple.powerd.plist


and rebooting. No change: apcupsd still reports the USB device is opened by
another process in exclusive mode.

-- 
Kurtis Rader
Caretaker of the exceptional canines Junior and Hank