From owner-svn-src-head@FreeBSD.ORG Tue Dec 7 23:41:27 2010 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 542EE106564A; Tue, 7 Dec 2010 23:41:27 +0000 (UTC) (envelope-from avg@freebsd.org) Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140]) by mx1.freebsd.org (Postfix) with ESMTP id 035C58FC13; Tue, 7 Dec 2010 23:41:25 +0000 (UTC) Received: from porto.topspin.kiev.ua (porto-e.starpoint.kiev.ua [212.40.38.100]) by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id BAA11473; Wed, 08 Dec 2010 01:41:21 +0200 (EET) (envelope-from avg@freebsd.org) Received: from localhost.topspin.kiev.ua ([127.0.0.1]) by porto.topspin.kiev.ua with esmtp (Exim 4.34 (FreeBSD)) id 1PQ79s-000Hvq-Ug; Wed, 08 Dec 2010 01:41:21 +0200 Message-ID: <4CFEC620.80900@freebsd.org> Date: Wed, 08 Dec 2010 01:41:20 +0200 From: Andriy Gapon User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.2.12) Gecko/20101029 Lightning/1.0b2 Thunderbird/3.1.6 MIME-Version: 1.0 To: Matthew Jacob References: <201012072046.oB7KkB4L079555@svn.freebsd.org> <4CFEAD09.30904@freebsd.org> <4CFEAFA6.4020103@feral.com> <4CFEB1AD.70906@freebsd.org> <4CFEBF27.8010203@feral.com> In-Reply-To: <4CFEBF27.8010203@feral.com> X-Enigmail-Version: 1.1.2 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, Bruce Cran Subject: Re: svn commit: r216269 - head/sys/geom/part X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 07 Dec 2010 23:41:27 -0000 on 08/12/2010 01:11 Matthew Jacob said the following: > Geometry is still important. Trying booting a USB flash drive on all BIOS' with > a 63/255 geometry instead of a 64/32 geometry. Well, I don't know anything about USB... My point about modern HDDs still stands. > On 12/7/2010 2:14 PM, Andriy Gapon wrote: >> on 08/12/2010 00:05 Matthew Jacob said the following: >>> >>> On 12/7/2010 1:54 PM, Andriy Gapon wrote: >>>> on 07/12/2010 22:46 Bruce Cran said the following: >>>>> Don't warn if a partition appears not to be aligned on a track boundary. >>>>> Modern disks use LBA and create a fake CHS geometry that doesn't have any >>>>> relation to the on-disk layout of data. >>>> You repeated that statement, so I am picking on you :-) >>>> Can someone show me how/where exactly modern drives fakes CHS geometry? >>>> >>> cf cam_calc_geometry >> But that's not drive firmware code :-) >> It's us faking those parameters for ourselves for some unknown reason. >> Stupid us :-) But not the drives / manufacturers. >> -- Andriy Gapon