*BSD News Article 58212


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From: jkh@violet.berkeley.edu (Jordan K. Hubbard)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: serial port as console
Date: 6 Jan 1996 06:34:41 GMT
Organization: University of California, Berkeley
Lines: 15
Message-ID: <4cl561$p3b@agate.berkeley.edu>
References: <rfn382yn1t.fsf@puma.cs.byu.edu>
NNTP-Posting-Host: violet.berkeley.edu

In article <rfn382yn1t.fsf@puma.cs.byu.edu>,
Phillip J. Windley <windley@lal.cs.byu.edu> wrote:
>Is it possible to use FreeBSD in a configuration where there is no video
>card and only a serial port console?  I'm rack mounting a bunch of systems
>and video switchers are expensive and serial switchers are cheap...

As long as your motherboard's BIOS doesn't have fits at the thought
of missing its VGA or keyboard, you can install a version of the boot
blocks which will go to the serial port first for the console.
Have a look at /sys/i386/boot/biosboot/Makefile and see the FORCE_COMCONSOLE
option which is currently commented-out there.  Once you have the new
ones built and installed in /usr/mdec, just whap them on your disk with
`disklabel -B wd0|sd0'.  Reboot and your serial port will be the console.

				Jordan