From owner-freebsd-questions  Fri Sep 27  4:23: 2 2002
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Date: Fri, 27 Sep 2002 14:22:56 +0300
To: questions@FreeBSD.ORG,
	"Brian T. Schellenberger" <bts@babbleon.org>
From: Petri Riihikallio <Petri.Riihikallio@Metis.fi>
Subject: Re: How to shut down cleanly by killing power
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>>What is wrong with
>>
>>   shutdown -p now
>>
>>?
>>
>>(Or shutdown -h now, if you don't have APM?)

The system is helpless, if the power returns before the UPS shuts 
down. Since there won't be any power-out, there won't be autoboot at 
power-return.

The time frame is over a minute. That's why the UPS can (and should) 
power down the system.
-- 
Cheers,
Petri

Metis / Petri Riihikallio
GSM: +358 400 505 939

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