From owner-freebsd-hackers Tue Jan 2 15:14:15 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id PAA18600 for hackers-outgoing; Tue, 2 Jan 1996 15:14:15 -0800 (PST) Received: from gemsgw.med.ge.com (gemsgw.med.ge.com [192.88.230.10]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id PAA18595 for ; Tue, 2 Jan 1996 15:14:12 -0800 (PST) Received: from gemed.med.ge.com (gemed.med.ge.com [3.7.12.4]) by gemsgw.med.ge.com (8.6.12/8.6.12) with ESMTP id RAA16217; Tue, 2 Jan 1996 17:12:53 -0600 Received: from sol.sol.med.ge.com (sol-gw [3.28.124.2]) by gemed.med.ge.com (8.6.12/8.6.12) with SMTP id RAA15696; Tue, 2 Jan 1996 17:13:35 -0600 Received: from merak.med.ge.com by sol.sol.med.ge.com (4.1/SMI-4.1) id AA25668; Tue, 2 Jan 96 17:14:48 CST From: laufen@sol.med.ge.com (Derek Laufenberg x7-4534) Received: by merak.med.ge.com (4.1/client-1.3) id AA29241; Tue, 2 Jan 96 17:14:47 CST Date: Tue, 2 Jan 96 17:14:47 CST Message-Id: <9601022314.AA29241@merak.med.ge.com> To: laufen@sol.med.ge.com, terry@lambert.org Subject: Re: HELP!!! THIS IS AN EMERGENCY (fwd) Cc: msmith@atrad.adelaide.edu.au, marino.ladavac@aut.alcatel.at, hackers@FreeBSD.ORG Sender: owner-hackers@FreeBSD.ORG Precedence: bulk > > The 500M limit comes from the BSD inability to talk to the controller > using an LBA adressing mechanism. The BSD *does* see the OnTrack and > do the 64 sector offsetting. > > The kernel has to locate the disklabel and remount root, which means > it use the C/H/S value and the non-LBA interface (because it uses a > protected mode driver, the TSR doesn't do anything for it). > > > > You should be *extremely* careful when booting a floppy and then using > an FDISK or whatever to manipulate the partition table. In particular, > the old "fdisk/mbr after booting from a DOS floppy" will murder the > OnTrack boot code and render your data unusable unless you happen to > have one of the OnTrack 6.x/7.x disks to reinstall, and are prepared > to go hacking the partition table at the 65th sector after the reinstall. > The flavor of OnTrack (6.2 i think) allows you to boot a floppy after it has loaded so you can keep your Int 13 handler the same. I don't remember this in the older versions. Do you know if this sort of thing is fixed with Win95 or is it still stupid about big disks? > > Terry Lambert > terry@lambert.org > --- > Any opinions in this posting are my own and not those of my present > or previous employers. >