SUMMARY: Ignore BREAK signal?

From: David Carlin (djc6@eecs.cwru.edu)
Date: Thu Nov 18 1999 - 16:42:28 CST


This problem had a somewhat easy fix. The best solution was sent to me by
Brendan Choi who suggested installing patch 107589-02. Once you install
this patch just change this line in /etc/default/kbd :

#KEYBOARD_ABORT=enable

to

KEYBOARD_ABORT=alternate

or you can use the command "kbd -a alternate". Once you've done this,
reboot, and now only the alternate break sequence of "<CR> ~ ^b" will
get you into the PROM.

Special thanks to:

Brendan Choi <bchoi@best.com>
Devadas Vishwanath <das@veritas.com>
Kevin Sheehan <kevin@joltin.com>
Jesse Adam <jaa@cisco.com>
Casper Dik <casper@holland.sun.com>
Brad Young <byoung@splitrock.net>
Don Varner <varner@es.net>
Raymond Wong <negativl@netcom.com>
Dan Stromberg <strombrg@nis.acs.uci.edu>

> I know this topic has been discussed many times, but going through
> the summaries archive I haven't found a solution. I have an Ultra 1
> running Solaris 7 that I am using a serial console on. How can I stop it
> from going into PROM mode every time the PC on the other end is
> power-cycled? I have read about several hardware implementations to
> suppress the BREAK signal but I'd still like to be able to enter the PROM
> from the serial console. I also read about a package sun makes called
> "CONSULT-ZSBREAK" that lets you setup a different key sequence to go into
> PROM mode -- this would be ideal. Unfortunately, I've looked all over
> sun's site and can't find any reference to this :) Anyone know where I
> can get it? I've also heard this was only for SunOS and is incoporated
> into Solaris now. If so, how do I do it? I've looked all through the
> Solaris 7 AnswerBooks and haven't found anything.
>
> Basically, I want to use the serial console, and I'd like to be able to
> access the PROM easily from the serial console, but I don't want the Sun
> to go into PROM mode every time the PC is restarted.
>
> Any suggestions?

-- 
David Carlin -- djc6@eecs.cwru.edu | Case Western Reserve University
Unix Administrator, EECS Dept.     | 10900 Euclid Ave.
Phone: (216) 368-0355              | Olin Bldg. Rm. #414
Fax:   (216) 368-6888              | Cleveland, OH 44106-7071



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