Date: Mon, 02 Oct 2000 12:54:59 -0700 (PDT) From: John Baldwin <jhb@FreeBSD.org> To: Robert Nordier <rnordier@FreeBSD.org> Cc: cvs-all@FreeBSD.org, cvs-committers@FreeBSD.org Subject: RE: cvs commit: src/sys/boot/i386/boot0 Makefile boot0.s Message-ID: <XFMail.001002125459.jhb@FreeBSD.org> In-Reply-To: <200010021730.KAA77012@freefall.freebsd.org>
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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 <jhb@FreeBSD.org> -- 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
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