From owner-freebsd-stable@FreeBSD.ORG Mon Jul 26 18:12:34 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 297AF1065674 for ; Mon, 26 Jul 2010 18:12:34 +0000 (UTC) (envelope-from se@FreeBSD.org) Received: from smtp107.plus.mail.re1.yahoo.com (smtp107.plus.mail.re1.yahoo.com [69.147.102.70]) by mx1.freebsd.org (Postfix) with SMTP id C1D028FC16 for ; Mon, 26 Jul 2010 18:12:33 +0000 (UTC) Received: (qmail 69055 invoked from network); 26 Jul 2010 17:45:53 -0000 Received: from [192.168.2.111] (se@188.60.144.187 with plain) by smtp107.plus.mail.re1.yahoo.com with SMTP; 26 Jul 2010 10:45:52 -0700 PDT X-Yahoo-SMTP: iDf2N9.swBDAhYEh7VHfpgq0lnq. X-YMail-OSG: s62z3nYVM1my2gxF4YFNo_EdRRXMTu5fQ5pZeXTzQeTUCv7 mAFk99eB2sMY2Dl_eva9_l4XM1YC17_ZY9K.15wAxNRQUORy0QFprKTwXIw0 i2Vcoid50FF88zmIBa1tnkDlmB8RBOmgwbJutyPpSiiGsYHDXKeXBzV0C7f0 qaVXe6LkyCNfD5T8ND89IjoBcqFE0vOvZURNN3eyp6I0GuODf2HYQ34u2ErW E2wrWTyTk_ws8gIdUasvUefrRiBpH_jf1pAONTXrcXIH5CxMqj.d0fcAoRUD AU8wEpJh6mRv4L7wqNsHkoauxBpW_PXsY9Cn7kqZ.z8s9HWTzNQfd0aBMPlW U0gHPyuIeR156w_YoNNNdRpdzvGg8.oJjPnARluM- X-Yahoo-Newman-Property: ymail-3 Message-ID: <4C4D44F5.6040603@FreeBSD.org> Date: Mon, 26 Jul 2010 10:19:01 +0200 From: Stefan Esser User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.8.1.18) Gecko/20081105 Thunderbird/2.0.0.18 ThunderBrowse/3.2.2.1 Mnenhy/0.7.5.666 MIME-Version: 1.0 To: freebsd-stable@freebsd.org References: <4C4BA50B.6050507@langille.org> <4C4BB672.3090109@langille.org> <4c4cdfd7.Jb6syVdaC436gUYp%perryh@pluto.rain.com> In-Reply-To: <4c4cdfd7.Jb6syVdaC436gUYp%perryh@pluto.rain.com> X-Enigmail-Version: 1.1.1 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: Re: gpart -b 34 versus gpart -b 1024 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 26 Jul 2010 18:12:34 -0000 Am 26.07.2010 03:07, schrieb perryh@pluto.rain.com: > Dmitry Morozovsky wrote: >> ... sector numbers (in CHS address method) >> [start] at 1 (which always suprized me ;) > > This goes back at least as far as soft-sectored 8" diskettes > in the CP/M era. > > IIRC, physical sector 0 of each track contained the C number, > possibly the H, and a list of the remaining sectors on the track > including the size of each sector -- even within a single track > the sectors did not all have to be the same size. This is extremely off-topic, and therefor, I´ll only say, that the above is not true for 8" diskettes nor for CP/M. I can only guess, that there is a track 0 and not a sector with that number because the first track was reserved for system internal use (e.g. held at least the CCP in case of CP/M). I´m quite sure, that FDCs generally supported sector numbers from 0 to 254 (with 255 reserved as a wildcard in certain commands). But this is all really off-topic ... Regards, STefan