Date: Sat, 23 May 1998 07:09:46 -0700 From: Mike Smith <mike@smith.net.au> To: Marc Nicholas <marc@hippocampus.net> Cc: freebsd-small@FreeBSD.ORG Subject: Re: BIOS bootstrap? Message-ID: <199805231409.HAA00468@antipodes.cdrom.com> In-Reply-To: Your message of "Fri, 22 May 1998 20:16:52 EDT." <Pine.BSF.3.95.980522201322.7813M-100000@neuron.hippocampus.net>
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> This is a tiny bit off-topic for the list, but I thought I'd throw it out > there... > > My embedded system supports BIOS extension and includes it's own local > Flash memory to do so. Basically what I'd like to do is build some sort of > (EE)ROM bootstrap to load my custom FreeBSD operating system. HOWEVER... > > All input/output must be done via COM1. I've never done much low level PC > programming...has anyone attempted something like this? In an ideal world, > I'd also be looking to front-end the BIOS setup screen over COM1. > > And, no, I can't just get a BIOS kit and re-write the BIOS :-p The FreeBSD bootstrap already supports serial console I/O, and FreeBSD has always supported serial consoles. You can tweak the bootblock build to always use com1 for I/O, and then set the appropriate flags in the kernel to use com1 as the serial console. -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-small" in the body of the message
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