Summary: Console Noise (Serial) drop into {ok}

From: David Rieger (drieger@olac.berkeley.edu)
Date: Mon Jul 19 2004 - 11:24:26 EDT


Good day everyone,

A humble thanks to the list for a concerted set of answers and the ability
to ask questions as well as thanks to the following individuals for their
time and responses:

Casper Dik
Rainer.Heilke
Randy Chatfield
Albert White
Andrew Hay
Ryan A. Krenzischek
Steve Edberg
Brian Miller
Adrian Phillips

Summary:

Serial line noise seems to be a product of certain pieces of hardware. In
my case I was using a wintel box (Hyperterminal) and connected to my
servers with a DB9 connector and x-link 10b/t cable to the serial
management port on my Sun box over time noise started to emanate and this
noise began to hit upon a keyboard interrupt sequence that is not a bug but
a function of debugging per Casper Dik (who responded first with the edit
/etc/default/kbd suggestion) below.

Lastly, many suggested ensuring the hardware key is set to "locked" as well.

###CD###
"What you're witnessing is the return to OBP upon receipt of a break
signal; this is a tremendously useful feature when debugging problems;
of course not when it happens by accident.

It's not a bug, it's a feature.

You can configure Solaris not to exit to OBP using "kbd -a alternate"
which switches to the alternate sequence.

In order to make this change persistance across reboots, edit
/etc/default/kbd."

###

Regards,

David Rieger
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