From owner-cvs-all Mon Oct 2 12:55:10 2000 Delivered-To: cvs-all@freebsd.org Received: from mail.rdc1.va.home.com (ha1.rdc1.va.home.com [24.2.32.66]) by hub.freebsd.org (Postfix) with ESMTP id 963A037B503; Mon, 2 Oct 2000 12:55:04 -0700 (PDT) Received: from laptop.baldwin.cx ([24.6.244.187]) by mail.rdc1.va.home.com (InterMail vM.4.01.03.00 201-229-121) with ESMTP id <20001002195502.FVIO26082.mail.rdc1.va.home.com@laptop.baldwin.cx>; Mon, 2 Oct 2000 12:55:02 -0700 Content-Length: 1556 Message-ID: X-Mailer: XFMail 1.4.0 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <200010021730.KAA77012@freefall.freebsd.org> Date: Mon, 02 Oct 2000 12:54:59 -0700 (PDT) From: John Baldwin To: Robert Nordier Subject: RE: cvs commit: src/sys/boot/i386/boot0 Makefile boot0.s Cc: cvs-all@FreeBSD.org, cvs-committers@FreeBSD.org Sender: owner-cvs-all@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On 02-Oct-00 Robert Nordier wrote: > rnordier 2000/10/02 10:30:22 PDT > > Modified files: > sys/boot/i386/boot0 Makefile boot0.s > Log: > Go back to occupying just a single sector, reverting r1.17 - r1.20. > Taking over the sector following the MBR causes problems on some > machines, and the actual gains are fairly small in terms of how > the space is presently used. Err, being able to boot past the 1024 cylinder boundary automagically and during install is a rather sizable gain I should think. It even ended up as a bullet on the back of the 4.1 CD set. :-( I do know of some people that were having some issues, and was planning to work up some test boot0's to narrow down where it was hanging when I got back from my short vacation on Thursday. > Since we need a number of further features (eg. handling extended > partitions) that can't be readily accommodated in the basic boot0 > design anyway, rather choose to implement the additional stuff > separately and concentrate on compatibility rather than features > here. Actually, I had made it simple enough that all you had to do was bump NUM_SECTORS and the rest took care of itself. You could then add arbitrary extra code onto the end after the first sector, up to a reasonable maximum of 16 sectors. We just defeated the 1024 cylinder problem, don't bring it back. :-( -- John Baldwin -- http://www.FreeBSD.org/~jhb/ PGP Key: http://www.baldwin.cx/~john/pgpkey.asc "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