[CentOS] 2 questions re UPS management

On 03/20/2013 12:41 PM, Fred Smith wrote:
> I recall, from reading docs in either nut, or the apc package for
> linux (don't recall which) that many USB UPSes do have signalling
> between the UPS and the computer to tell the UPS to shut itself off
> when the system has gone offline. So, I've been assuming that's what
> is happening in my case.

That's handled by /etc/init.d/halt.  It only happens if you have nut or 
APC's software installed and configured.  Take a look at the script, 
it's the last thing that happens if UPS management software is present. 
  If not, then the system will try kexec or halt.