From: Christina Plummer (chpr@ats.rochester.edu)
Date: Wed Jul 13 2005 - 15:59:44 EDT
I've been asked to help try and fix a 280R that was inadvertently shut
down and now won't come back up. I am guessing that it is just waiting
for a manual fsck, but I cannot get to the console to check. It has been
running headless for a long time, and no one seems to know how the console
had previously been set up. There does seem to be a PCI graphics card
with a VGA port installed. The serial A port had been connected to a UPS.
So far, we have tried the following:
1. Connecting a monitor to the VGA port and USB keyboard/mouse. Result:
no signal to monitor (amber light).
2. Connecting a serial null modem cable from the serial A port on the 280R
(I unplugged the cable to the UPS first) to the serial B port on an old
Ultra 1 and running 'tip hardwire'. Result: The tip command says
"connected", but hitting return does not give any output.
In terms of equipment, I have a long null modem cable, an ASCII (WYSE)
terminal, and a "DB-25 to ethernet" adapter thingy. I haven't tried the
ASCII terminal yet, because it isn't easy to get over to where the machine
is, and I thought that the tip should work. But I'm not sure whether the
OBP is set to send console output to the graphics card or the TTYA port.
The next thing I was thinking of trying was to do the "stop-N" equivalent
of hitting the power button twice quickly after powering off and powering
back on again. I understand that this should temporarily set the NVRAM
settings back to the "defaults" -- but I don't know what those defaults
might be.
Any help or advice would be much appreciated!
-------------------------------------------------------------------------
Christina Plummer christina (dot) plummer (at) rochester (dot) edu
UNIX Systems Administrator Information Technology Services
University of Rochester (585)275-2239
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