From owner-freebsd-questions  Fri Sep 27 10:20:45 2002
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To: Petri Riihikallio <Petri.Riihikallio@Metis.fi>
Cc: Kirk Strauser <kirk@strauser.com>, questions@FreeBSD.ORG
Subject: Re: How to shut down cleanly by killing power
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From: swear@attbi.com (Gary W. Swearingen)
Date: 27 Sep 2002 10:22:55 -0700
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I've never tried this and it's not the ideal method, but it's simple,
so I offer it for your consideration:

Put your UPS software on the root partition.

In the software which initiates the mains-failure shutdown, just do
"shutdown -r now" or "init 6" or "reboot" or whatever.

At the top of /etc/rc, if your UPS monitor says that the mains have
failed, have your UPS controller switch off the UPS output.


References: init(8), rc(8), shutdown(8), reboot(8)

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