Dead Console
Mike Mc Namara
mac at tflop.UUCP
Tue Apr 29 09:53:05 AEST 1986
Got:
----- Transcript of session follows -----
550 salmi at dicome.UUCP... Host unknown
In response to:
To: dicome!salmi
Subject: Re: sick console
Newsgroups: net.unix,net.unix-wizards
In-Reply-To: <840 at dicome.UUCP>
So I am posting it:
[Vax 11/78X machine running Ultrix comes up; runs first level messages,
gets to the rc file, and no more messages appear on console. Console
runs fine separately.]
I have seen this on a Data General MV8000 running their port of SYS 5.
It seems that the system has a complex protocol, with a virtual
system console. The idea is that if you shut the system down from
some tty, that becomes the virtual system console hence forth.
On reboot, the commands to your basic system (boot microcode) get
printed on the real console, but once the system gets to rc, it
switches to the terminal from which you shut the system down from.
Of course if that terminal was a dialup line, or a psuedo tty,
then all the fun messages (UNREFERENCED FILE owner=root name=/vmunix)
get routed off to essentially /dev/null...
Once I identified this as the cause, and since ALL our terminals
were connected via a develcon switch, I took this "feature" out.
Some one must have thought it was a good idea, but in a practical
situation it doesn't work out. Many times you shut the machine
down from the terminal in your office. However, you don't what
all console messages going there henceforth.
Perhaps this is your problem...
--
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| Michael Mc Namara | Let the words by yours, I'm done with mine.
| dual!vecpyr!tflop!mac | May your life proceed by its own design.
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--
---------------------------------+--------------------------------------------
| Michael Mc Namara | Let the words by yours, I'm done with mine.
| dual!vecpyr!tflop!mac | May your life proceed by its own design.
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