From owner-cvs-all Thu Oct 24 12:10:31 2002 Delivered-To: cvs-all@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C306937B404 for ; Thu, 24 Oct 2002 12:10:28 -0700 (PDT) Received: from mail.speakeasy.net (mail17.speakeasy.net [216.254.0.217]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1F70043E7B for ; Thu, 24 Oct 2002 12:10:28 -0700 (PDT) (envelope-from jhb@FreeBSD.org) Received: (qmail 12501 invoked from network); 24 Oct 2002 19:10:34 -0000 Received: from unknown (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender ) by mail17.speakeasy.net (qmail-ldap-1.03) with DES-CBC3-SHA encrypted SMTP for ; 24 Oct 2002 19:10:34 -0000 Received: from laptop.baldwin.cx (gw1.twc.weather.com [216.133.140.1]) by server.baldwin.cx (8.12.6/8.12.6) with ESMTP id g9OJAPn5072002; Thu, 24 Oct 2002 15:10:25 -0400 (EDT) (envelope-from jhb@FreeBSD.org) Message-ID: X-Mailer: XFMail 1.5.2 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <200210241905.g9OJ5ahD045378@dotar.thuvia.org> Date: Thu, 24 Oct 2002 15:10:29 -0400 (EDT) From: John Baldwin To: Mark Valentine Subject: Re: cvs commit: src/lib/libdisk Makefile chunk.c write_alpha_dis Cc: Bruce Evans , Bakul Shah , Takahashi Yoshihiro , cvs-committers@freebsd.org, cvs-all@freebsd.org, Poul-Henning Kamp Sender: owner-cvs-all@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On 24-Oct-2002 Mark Valentine wrote: >> From: jhb@freebsd.org (John Baldwin) >> Date: Thu 24 Oct, 2002 >> Subject: Re: cvs commit: src/lib/libdisk Makefile chunk.c write_alpha_dis > >> And all i386 disks have MBR's cause the BIOS basically wants them >> there and won't work without them. Pretending that they don't >> exist is just nonsense. > > The MBR partitioning is a feature of the MBR boot code, not of the BIOS. > > If I ever come across such a broken BIOS I will be even more grateful > if "/dev/da0c" continues to do the right thing so I don't have to change > the world due to it. How about Adaptec SCSI BIOS's and other "smart" BIOS's that look at the MBR to guess what geometry you are using so that they can adjust their BIOS to DTRT? These choke if you don't have a valid MBR. MBR's are part of the i386 defacto architecture, deal. -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message