Summary: Re: problem with console

From: Ada Chan (
Date: Thu Jul 24 1997 - 11:56:48 CDT

My original question:

> Hi Sun Managers,
> Our Ultra 170 server has as its console a Wyse 185 terminal emulating VT100
> connected to the Serial Port A. It has been working until our computer room
> experienced an unplanned power outage. Now the terminal just blinks a
> cursor. I tried rebooting the machine and replacing the terminal and cable
> with a known good one configured for VT100, but nothing shows up on the
> screen, not even the boot prompt. I've also tried port B to no avail. The
> system boots up just fine, however and if I turned off the monitor, the
> system crashes (seems to know it's there). Could the port have gone bad
> since the power outage? Is there a command or file to check for console?
> /var/adm/messages shows the following among other things:
> Jul 13 10:04:55 kali unix: keyboard is </sbus@1f,0/zs@f,1000000> major <29> minor <2>
> Jul 13 10:04:55 kali unix: mouse is </sbus@1f,0/zs@f,1000000:b> major <29> minor <3>
> /dev/console shows the following:
> kali% cd /dev
> kali% ls -l console
> lrwxrwxrwx 1 root root 30 Nov 13 1996 console -> ../devices/pseudo/cn@0:console
> kali% ls -l ../devices/pseudo/cn@0:console
> crw--w---- 1 root tty 0, 0 Jul 13 11:09 ../devices/pseudo/cn@0:console
> Thanks for any help you can provide. I will summarize the replies.

I received replies from:

bismark@alta.Jpl.Nasa.Gov (Bismark Espinoza) (ibmsuxwg-C.Kumar(AH0224)XXXX)

The solution turned out to be:

A bad motherboard. The power outage must have had done something to do with
it. Sun replaced it and it is working now. Thanks for your help.

  Ada Chan Voice: (415) 476-6867
  Computer System Manager Fax: (415) 476-4653
  Library & Ctr for Knowledge Mgmt
  University of California, San Francisco

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