From owner-freebsd-questions@FreeBSD.ORG Sat Nov 29 01:12:59 2014 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 41536E5 for ; Sat, 29 Nov 2014 01:12:59 +0000 (UTC) Received: from agora.rdrop.com (agora.rdrop.com [IPv6:2607:f678:1010::34]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 1A5F9D3E for ; Sat, 29 Nov 2014 01:12:59 +0000 (UTC) Received: from agora.rdrop.com (66@localhost [127.0.0.1]) by agora.rdrop.com (8.13.1/8.12.7) with ESMTP id sAT1CmQw007868 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Fri, 28 Nov 2014 17:12:48 -0800 (PST) (envelope-from perryh@pluto.rain.com) Received: (from uucp@localhost) by agora.rdrop.com (8.13.1/8.14.2/Submit) with UUCP id sAT1Cm4s007867; Fri, 28 Nov 2014 17:12:48 -0800 (PST) (envelope-from perryh@pluto.rain.com) Received: from fbsd81 by pluto.rain.com (4.1/SMI-4.1-pluto-M2060407) id AA19498; Fri, 28 Nov 14 17:11:26 PST Date: Fri, 28 Nov 2014 17:11:22 -0800 From: perryh@pluto.rain.com (Perry Hutchison) To: starrtennis@gmail.com Subject: Re: OT: UPS for FreeBSD Message-Id: <54791d3a.w/pI0kak03d+3nKC%perryh@pluto.rain.com> References: <54777AB1.9010800@bluerosetech.com> <54779629.302@bluerosetech.com> <5478BD4F.7020306@yahoo.com> <5478BEE6.30308@bluerosetech.com> <5478CC08.9090307@yahoo.com> <20141128204722.561f948e@archlinux> <5478F16A.80605@yahoo.com> In-Reply-To: User-Agent: nail 11.25 7/29/05 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: pathiaki2@yahoo.com, freebsd-questions@freebsd.org X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Nov 2014 01:12:59 -0000 Mike Starr wrote: > I haven't thought too much about this either, but how much does > power supply have to do with which os one uses? If you are only using the UPS to cover for outages from momentary up to a few seconds, not much. However, if you want the UPS to notify the OS when the battery starts to get low, so that the OS can shut down cleanly, you need for the OS to support whatever communication mechanism the UPS provides.