*BSD News Article 59246


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From: j@uriah.heep.sax.de (J Wunsch)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: console device
Date: 17 Jan 1996 01:26:24 GMT
Organization: Private BSD site, Dresden
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Message-ID: <4dhj80$r9@uriah.heep.sax.de>
References: <4d9fci$sga@dailyplanet.netpath.net>
Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch)
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deasey@server1.netpath.net (Geoffrey Deasey) writes:

> Is there a way to change the console device while booting from the
> floppy ?  I have a machine that has a Link terminal as the console.
> No KB no Monitor.  It is running Linux (Slackware, really old).  Or
> do I have to get a monitor ?

There's a method to dynamically reassign the console to the first
serial port, by entering -h at the boot prompt.  Obviously, you need a
keyboard for this.

Alternatively, you can rebuild and reinstall the bootblocks with the
option FORCE_SERIAL_CONSOLE uncommented in the Makefile.  The sources
are under /sys/i386/boot/biosboot/.  Don't forget to disklabel -B
your drive in order to install the bootblocks.

The third way is to auto-probe the existance of a keyboard.  Alas, the
designers of the PeeCee forgot to add a BIOS function to query the
BIOS autoprobing result (apparently, they never assumed that somebody
could work without a keyboard :), and due to various crappy PC
hardware, the existing keyboard probe function in the boot code tends
to jam about 10 % of all existing keyboards.  That's why autoprobing
has been disabled until somebody feels to fix it...

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)