From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752849AbYDWGx5 (ORCPT ); Wed, 23 Apr 2008 02:53:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750995AbYDWGxs (ORCPT ); Wed, 23 Apr 2008 02:53:48 -0400 Received: from mr1.bfh.ch ([147.87.250.50]:33418 "EHLO mr1.bfh.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750747AbYDWGxr (ORCPT ); Wed, 23 Apr 2008 02:53:47 -0400 Message-ID: <480EDCF5.5000306@bfh.ch> Date: Wed, 23 Apr 2008 08:53:41 +0200 From: Seewer Philippe Organization: BFH User-Agent: Thunderbird 2.0.0.12 (X11/20080227) MIME-Version: 1.0 To: Mark Lord CC: Francis Moreau , linux-kernel@vger.kernel.org Subject: Re: Disk geometry from /sys References: <38b2ab8a0804091353h3725ce29s196e27e8b4f1ff56@mail.gmail.com> <480354C9.1050600@bfh.ch> <38b2ab8a0804150040i14840a9fudc3b95ba80d52ac1@mail.gmail.com> <4805AF93.90209@bfh.ch> <38b2ab8a0804170709m58830adagcba46f059ed10809@mail.gmail.com> <4807635E.9060101@bfh.ch> <4808A09B.6090106@rtr.ca> <38b2ab8a0804221316o7cab5641q16814849a1099b9a@mail.gmail.com> <480E6A35.4040108@rtr.ca> In-Reply-To: <480E6A35.4040108@rtr.ca> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 23 Apr 2008 06:53:21.0620 (UTC) FILETIME=[B80F6140:01C8A50E] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Mark Lord wrote: [snip] > The earliest IDE drives for Compaq used only CHS sector addressing mode. > > Within four years, though, all new drives had support for the more > sensible linear block addressing (LBA) mode, as well. > > LBA has been mandatory in new drives since the early 1990s, > so there's really no point to CHS addressing any more, > except when fiddling with MS-DOS style partition tables > (which have both CHS and LBA values stored inside). Sorry, can't resist that quip here... Many of the well known x86-based OS', OS-installers and even bootloaders from this millenium trusted the partition tables c/h/s values to match the bios... causing havoc say with PATA drives atached to SATA connectors. If that weren't the case I guess Linux could have get rid of c/h/s a looong time ago. Hmmm... maybe its time?