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Date:      Fri, 07 Mar 2003 14:39:32 -0500 (EST)
From:      John Baldwin <jhb@FreeBSD.org>
To:        Terry Lambert <tlambert2@mindspring.com>
Cc:        freebsd-chat@freebsd.org, Damien Tougas <damien@tougas.net>
Subject:   Re: A question about kernel modules
Message-ID:  <XFMail.20030307143932.jhb@FreeBSD.org>
In-Reply-To: <3E68F2B2.43FB7053@mindspring.com>

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On 07-Mar-2003 Terry Lambert wrote:
> The GENERIC kernel is loaded from a CDROM controller BIOS faked-up
> floppy drive, which is how CDROMs are able to boot.  Even if all
> other issues were resolved, this floppy image would be unable to
> contain all the necessary modules.  For the modules to be read off
> the CDROM or other boot media, all the code in the module loading
> path would have to be statically present (ISO9660 FS, ATA and SCSI
> drivers, CDROM driver, etc., etc.).  By including all the drivers
> in the GENERIC kernel, it makes it much more likely that you will
> b able to actually install FreeBSD in the first place.

FreeBSD hasn't used the floppy-emulation mode of CD booting since
4.6.  See /usr/src/sys/boot/i386/cdboot/cdboot.s and an El Torito
standard for more details.

-- 

John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/

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