From owner-freebsd-hackers Wed Oct 17 9:58:27 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from femail4.sdc1.sfba.home.com (femail4.sdc1.sfba.home.com [24.0.95.84]) by hub.freebsd.org (Postfix) with ESMTP id 1467C37B403 for ; Wed, 17 Oct 2001 09:58:25 -0700 (PDT) Received: from laptop.baldwin.cx ([24.2.39.156]) by femail4.sdc1.sfba.home.com (InterMail vM.4.01.03.20 201-229-121-120-20010223) with ESMTP id <20011017165824.QZEF15859.femail4.sdc1.sfba.home.com@laptop.baldwin.cx>; Wed, 17 Oct 2001 09:58:24 -0700 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: Date: Tue, 16 Oct 2001 21:34:59 -0700 (PDT) From: John Baldwin To: Thomas Dixon Subject: RE: Problems with booting of CD-ROM (fwd) Cc: hackers@FreeBSD.org Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On 17-Oct-01 Thomas Dixon wrote: > > > On Tue, 16 Oct 2001, John Baldwin wrote: > >> >> On 16-Oct-01 Thomas Dixon wrote: >> > I'm trying to make a bootable CD using the cdboot program that come with >> > freeBSD in /sys/i386/boot/cdboot. The computer I'm trying to do this on >> > definately boots other CDs as it has booted several other CDs. However >> > using a CD I've made using mkisofs and cdboot it gives the error; >> > >> > Your BIOS int 0x13 extensions seem to be disabled. >> > It's impossible to boot a CD-ROM without them. >> > (BIOS int 0x13 fn 0x4b01 yielded error 1) >> > >> > I'm using an Asus P5A motherboard, there appears to be no way to enable >> > the int 0x13 extensions in the BIOS and there is nothing in the manual >> > that refers to these. >> > >> > Any ideas why this error is coming up or how to fix it? >> >> Don't use cdboot or cdldr, they don't qutie work yet. :( >> >> Instead, make a floppy image and use that to boot. >> > I've tried this and I couldn't figure out the syntax for loader.rc to load > the file system from the cd-rom, any ideas? You don't really load the filesystem from the CD-ROM as the loader can't read a CD-ROM right now. Instead you use a memory filesystem on the floppy image and use that to boostrap yourself so you can mount the CD. > - Tom -- 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 freebsd-hackers" in the body of the message