From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1PCXv3-00087N-OO for garchives@archives.gentoo.org; Sun, 31 Oct 2010 13:25:58 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 3B4D4E077F; Sun, 31 Oct 2010 13:24:59 +0000 (UTC) Received: from smtp.gentoo.org (smtp.gentoo.org [140.211.166.183]) by pigeon.gentoo.org (Postfix) with ESMTP id 1888EE077F for ; Sun, 31 Oct 2010 13:24:59 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp.gentoo.org (Postfix) with ESMTP id AB9711B40A1 for ; Sun, 31 Oct 2010 13:24:58 +0000 (UTC) X-Virus-Scanned: by amavisd-new using ClamAV at gentoo.org X-Spam-Score: -0.174 X-Spam-Level: X-Spam-Status: No, score=-0.174 required=5.5 tests=[AWL=0.517, BAYES_00=-2.599, RCVD_ILLEGAL_IP=1.908] Received: from smtp.gentoo.org ([127.0.0.1]) by localhost (smtp.gentoo.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id D+iOiw++-Wgn for ; Sun, 31 Oct 2010 13:24:52 +0000 (UTC) Received: from lo.gmane.org (lo.gmane.org [80.91.229.12]) by smtp.gentoo.org (Postfix) with ESMTP id 1231F1B4096 for ; Sun, 31 Oct 2010 13:24:50 +0000 (UTC) Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1PCXtt-0007AU-6H for gentoo-user@gentoo.org; Sun, 31 Oct 2010 14:24:45 +0100 Received: from bl22-118-232.dsl.telepac.pt ([2.83.118.232]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 31 Oct 2010 14:24:45 +0100 Received: from nunojsilva by bl22-118-232.dsl.telepac.pt with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 31 Oct 2010 14:24:45 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: gentoo-user@lists.gentoo.org From: nunojsilva@ist.utl.pt (Nuno J. Silva) Subject: [gentoo-user] Re: Winter clock change did not happen Date: Sun, 31 Oct 2010 13:27:11 +0000 Message-ID: <878w1eijbk.fsf@ist.utl.pt> References: <201010310924.11434.michaelkintzios@gmail.com> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: bl22-118-232.dsl.telepac.pt User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux) Cancel-Lock: sha1:rAPjdfBC6CW5W1x/veUatGE3NFE= X-Archives-Salt: d7808840-17fa-474f-9c1a-d9611a6c7322 X-Archives-Hash: bb42b63cca27cf24ed62b0cbcd5145b0 Mick writes: > I dual boot with MSWindows and therefore have set up my /etc/conf.d/clock to: > > CLOCK="local" > TIMEZONE="Europe/London" > CLOCK_OPTS="" > CLOCK_SYSTOHC="no" > SRM="no" > ARC="no" > > I noticed this morning that the clock was still showing summer time (I rarely > boot into MSWindows). Was Linux running since before the time change? I suppose it would at least show the right time if that was the case. If it works, you still need CLOCK_SYSTOHC="yes" if you want Linux to change the clock. Linux has no way to know if the time change was done (nor windows), unless the systems are syncing with other clock (NTP), so both of them will boot up and think this "local" time is the winter time. The systems may still register if they already did the timezone change, so that they know what to do (that was the case with windows 98). > I had to boot into MSWindows to check what happens there and the clock was > showing the new winter time. After that the Linux clock was also showing the > updated winter time. > > Does this mean that twice a year when the clock changes I need to boot into > MSWindows first to allow the time change to take place, or is there a Linux > side fix for my dual boot set up? You can write something so that Linux changes the clock, but then be sure Windows is not set to change it. A better (read "more complicated") solution would involve some sync mechanism between both operating systems so that one can tell if the other already changed the clock. Unless windows now supports UTC clocks, you have to live either with this or with an always on winter clock on windows. -- Nuno J. Silva gopher://sdf-eu.org/1/users/njsg