Date: Mon, 5 Nov 2001 15:48:10 -0700 From: "Kenneth D. Merry" <ken@kdm.org> To: John Baldwin <jhb@FreeBSD.org> Cc: Joerg Wunsch <j@uriah.heep.sax.de>, cvs-all@FreeBSD.org, cvs-committers@FreeBSD.org Subject: Re: cvs commit: src/sys/boot/i386/cdboot Makefile cdboot.s Message-ID: <20011105154810.A21812@panzer.kdm.org> In-Reply-To: <XFMail.011105143654.jhb@FreeBSD.org>; from jhb@FreeBSD.org on Mon, Nov 05, 2001 at 02:36:54PM -0800 References: <20011105232259.B80377@uriah.heep.sax.de> <XFMail.011105143654.jhb@FreeBSD.org>
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On Mon, Nov 05, 2001 at 14:36:54 -0800, John Baldwin wrote: > On 05-Nov-01 Joerg Wunsch wrote: > > As John Baldwin wrote: > > > >> This is a new CD bootstrap utility designed to replace cdldr. > >> According to the El Torito standard for CD booting, a CD may boot > >> in "No emulation" mode without using a floppy image. > > > > I once wrote such a bootstrap, or rather: i tried. None of the > > available BIOSes by that time actually supported no emulation > > booting... Do you know whether the situation has improved drastically > > since? (You can still find the old traces in > > /home/ncvs/src/sys/i386/cdboot, but probably only the later emulation > > boot version. By that time, i wrote all of this for Plutotech. But > > Ken later told me that they gave up that route.) > > It was require as part of the NT4 logo program I believe. That is, in order to > get a 'Designed for Windows NT' sticker, your BIOS had to be able to do this. > I assume it applies for Win2k Professional as well. The test machine I've been > using is a rather old Dual PPro 200. The code Joerg wrote was done in mid-1997, and IIRC, it would only work properly with version 1.23 or maybe 1.25 of the Adaptec 2940UW SCSI BIOS. The other BIOS versions didn't do El Torito right at that point. Ken -- Kenneth Merry ken@kdm.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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