From owner-freebsd-questions@freebsd.org Tue Sep 4 14:00:06 2018 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id CDB3FFEFDEF for ; Tue, 4 Sep 2018 14:00:06 +0000 (UTC) (envelope-from feenberg@nber.org) Received: from mail2.nber.org (mail2.nber.org [198.71.6.79]) by mx1.freebsd.org (Postfix) with ESMTP id 66A6A708CE for ; Tue, 4 Sep 2018 14:00:05 +0000 (UTC) (envelope-from feenberg@nber.org) Received: from sas1.nber.org (sas1.nber.org [198.71.6.89]) by mail2.nber.org (8.15.2/8.15.2) with ESMTPS id w84DYHbr095908 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 4 Sep 2018 09:34:18 -0400 (EDT) (envelope-from feenberg@nber.org) Date: Tue, 4 Sep 2018 09:34:17 -0400 (EDT) From: Daniel Feenberg To: Valeri Galtsev cc: Chris Gordon , C Gray , FreeBSD Subject: Re: APC UPS BackUPS Pro (BX1500M) In-Reply-To: <59593.108.68.162.197.1536028420.squirrel@cosmo.uchicago.edu> Message-ID: References: <9B877978-297C-499C-86CE-99B68B570245@council124.org> <92A53B5A-BEC2-4A8C-828F-0AD180E30BD0@theory14.net> <59593.108.68.162.197.1536028420.squirrel@cosmo.uchicago.edu> User-Agent: Alpine 2.21 (LRH 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed X-KLMS-Rule-ID: 1 X-KLMS-Message-Action: clean X-KLMS-AntiSpam-Status: not scanned, disabled by settings X-KLMS-AntiSpam-Interceptor-Info: not scanned X-KLMS-AntiPhishing: Clean, 2018/08/31 11:53:39 X-KLMS-AntiVirus: Kaspersky Security 8.0 for Linux Mail Server, version 8.0.1.721, bases: 2018/09/04 08:17:00 #8791871 X-KLMS-AntiVirus-Status: Clean, skipped X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Sep 2018 14:00:07 -0000 On Mon, 3 Sep 2018, Valeri Galtsev wrote: > > To solve this last trouble I configure since forever in BIOS power ON > after AC power is returned. Usually if UPS has drained battery, after > power returns, it powers itself ON, provides power to outputs and starts > charging battery. We had this situation once, outage longer that UPS's on What happens if power returns during the shutdown sequence? The power never goes off, therefore never turns on, and the computer remains off. Is there a solution other than remote control? Daniel Feenberg NBER