From owner-freebsd-stable Sun Nov 19 16:26:14 2000 Delivered-To: freebsd-stable@freebsd.org Received: from echunga.lemis.com (freebie.lemis.com [192.109.197.137]) by hub.freebsd.org (Postfix) with ESMTP id 6533237B479 for ; Sun, 19 Nov 2000 16:26:08 -0800 (PST) Received: (from grog@localhost) by echunga.lemis.com (8.11.1/8.9.3) id eAK0MCB59783; Mon, 20 Nov 2000 10:52:12 +1030 (CST) (envelope-from grog) Date: Mon, 20 Nov 2000 10:52:11 +1030 From: Greg Lehey To: Warner Losh Cc: Sam Zamarripa , stable@FreeBSD.ORG Subject: Re: Dedicated disks (was: Dangerously Dedicated) Message-ID: <20001120105211.O58333@echunga.lemis.com> References: <20001120095100.G58333@echunga.lemis.com> <200011192231.eAJMVIF09854@mass.osd.bsdi.com> <008901c05278$b71a6f50$0200000a@sam> <20001120095100.G58333@echunga.lemis.com> <200011200019.RAA16004@harmony.village.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <200011200019.RAA16004@harmony.village.org>; from imp@village.org on Sun, Nov 19, 2000 at 05:19:43PM -0700 Organization: LEMIS, PO Box 460, Echunga SA 5153, Australia Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-418-838-708 WWW-Home-Page: http://www.lemis.com/~grog X-PGP-Fingerprint: 6B 7B C3 8C 61 CD 54 AF 13 24 52 F8 6D A4 95 EF Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Sunday, 19 November 2000 at 17:19:43 -0700, Warner Losh wrote: > In message <20001120095100.G58333@echunga.lemis.com> Greg Lehey writes: > As far as I know, there has been no decision to remove dedicated mode. >> I for one would strongly oppose it. Arguments about bootstraps and >> BIOS are bogus: on a dedicated machine, you only need a bootstrap on >> the boot disk, so any additional disks can always be dedicated. But >> to answer your question: if you have to change from dedicated to a >> Microsoft compatible layout, yes, you'll have to rebuild all your file >> systems. > > No it isn't bogus. You can't boot off a DD disk on some machines > because the MBR is too bogus for the BIOS to cope with. So you put a Microsoft partition table on the boot disk. That doesn't mean you need it on the other disks. > The problem with DD is that we put a bogus MBR onto the disk. All > that is necessary to fix it would be to put a non-bgous MBR onto the > disk. Right, for those cases where it's needed. More specifically, we need to now how non-bogus it needs to be. Greg -- Finger grog@lemis.com for PGP public key See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message