From owner-freebsd-questions@FreeBSD.ORG Wed Sep 15 13:48:21 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5FBB116A4CE for ; Wed, 15 Sep 2004 13:48:21 +0000 (GMT) Received: from seed.net.tw (sn14.seed.net.tw [139.175.54.14]) by mx1.FreeBSD.org (Postfix) with ESMTP id E551D43D1D for ; Wed, 15 Sep 2004 13:48:20 +0000 (GMT) (envelope-from fancalenno@pchome.com.tw) Received: from [221.169.177.125] (port=3211 helo=chivu) by seed.net.tw with smtp (Seednet 4.23:1) id 1C7a8w-000Ipa-SV for freebsd-questions@freebsd.org; Wed, 15 Sep 2004 21:48:19 +0800 Message-ID: <001b01c49b2a$a1ea11e0$d620fea9@chivu> From: "fancalenno" To: Date: Wed, 15 Sep 2004 21:48:01 +0800 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Content-Type: text/plain; charset="big5" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.1 Subject: problem with 1024 cylinders X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 15 Sep 2004 13:48:21 -0000 I have one IDE disk drive with 40GB I used the partition utility of win xp to make three partitions when I = was installing winxp. Its sequence is pri(xp)->ext(xp)->pri(bsd). I installed the xp on the first partition(pri) and put some personal = data on the next partition(ext). In the partition editor, I deleted(d) the third partition(pri) that I = had made, then created(c) a new BSD partition. Three partitions occupy 8GB. 16GB. 14GB in sequence respectively. After testing, both of win xp and FreeBSD can run normally with no = problem. ------------------ my question is ... does the FreeBSD still have the restriction that its = root file system must be installed in the first 1024 cylinders??? ------------------ a. http://www.freebsd.org/doc/en_US.ISO8859-1/articles/multi-os/ch3.html the document as above point out should put the root file system / into = the 1204 cylinders of the first disk drive otherwise bsd can't start = normally. b. The book" FreeBSD: An Open-Source Operating System for Your Personal = Computer" by Annelise Anderson say "FreeBSD needs a few of its = files(those in the / or 'slash' root file system)close enough to the = front of the drive so the computer can find them. And every other = operating system needs some files up front too..." I used partition magic to see the cylinder range of my bsd partition. = It indicated the cylinder range of bsd had already gone beyond the 1024 = cylinders!=20 But I still can use booteasy to start both of these two os. So I can't = figure out if the FreeBSD was really restricted by the 1024 cylinders??? ----- I think if it's about boot manager??? The common boot manager uses BIOS to start the os, but it's also = restricted by BIOS. The BIOS has the restriction that os can't be start if some files of = os(just as / of bsd)go beyond 1024 cylinders. But the booteasy doesn't use the BIOS, so it's not restricted by BIOS? I had ever used OS-BS to boot these two os, the xp can start normally = but the BSD can't. The pop up prompt window say"NO OPERATING SYSTEM!". = So I can't make sure if the factor"boot manager use BIOS or not" affects = the 1024 cylinders?