garbled console - bit of a problem!!

From: Dermot Paikkos (dermot@sciencephoto.com)
Date: Thu Aug 22 2002 - 05:03:42 EDT


Hi Managers,

        DS10, Tru64 5.1.

I seem to have created a problem on my system. I have been trying
to re-connect a modem to the system (the modem was blown after
lightening hit the building). The modem was originally connected to a
DECserver 90L. I couldn't get a login using the LAT servers so I
thought I'd connect it directly to the system.

The console is a laptop connected to /dev/tty00 (port 1) on the Alpha
via a serial connection and uses Hyperterminal. /dev/tty01 is used by
the UPS. I disconnected the UPS cable, killed the daemon, and
connected the modem. I modified the remote and inittab files to use
/dev/tty01 at 9600 baud (at least that's what I thought). After `init
q`, I did `tip b9600`. I got a connected message, an error about
unable to create log but I couldn't issue any at commands. I killed the
terminal that I was using tip on and later I noticed that the console
screen characters were un-readable.

This happened because I had used the device /dev/tty00 instead of
tty01 (see below). I put the files back as before and rebooted the
server but my messages was still garbled (the messages file is okay).
Obviously this means that I can't go into single users mode or halt
the system. I tried to login at the console but that doesn't seem to
work either.

Does anyone have any ideas on how to get my console back to
normal?? I will get back to the modem after I have my console back
again.

Thanx.
Dp.

====== inittab ==========
cons:1234:respawn:/usr/sbin/getty console console vt100
# Added by DP 21-8-02
#modem:23:respawn:/usr/sbin/getty /dev/tty00 M9600 vt100
=====================
==== remote ===========
# access line for kernel debugger
kdebug:dv=/dev/tty00:br#9600:pa=none:
# Added by DP
#b9600:dv=/dev/tty00:br#9600:pa=none:
====================

~~
Dermot Paikkos * dermot@sciencephoto.com
Network Administrator @ Science Photo Library
Phone: 0207 432 1100 * Fax: 0207 286 8668



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