Fedora 12 does not work after replacing the motherboard

[Chris Kloiber]

Well if a kernel is panics, the first thing it typically does is stop 
disk writing to prevent corruption (I haven't played with kdump yet). 
More stuff can often get logged, but its lost in memory when the board 
gets re-powered. If you are logging to serial, that information can 
sometimes be preserved.

-- 
Chris Kloiber


On 03/06/2010 03:40 AM, Andrew Junev wrote:
> Hello Tim,
>
> Saturday, March 6, 2010, 10:19:11 AM, you wrote:
>
>> If you have the ability, you can try getting the computer to output a
>> log to a serial port, and have another computer monitor it while you
>> crash it.  That's one technique to debug a computer that crashes very
>> badly.
>
> Thanks for the hint! That's an interesting idea. I do have a "proper"
> serial port on the motherboard, and I can find another machine with a
> serial port to monitor it.
>
> But...
>
>> Ask someone else for advise on setting that up, though.  It's a very
>> long time since I've played with serial ports, and you probably do need
>> a PC with genuine serial ports to try that.
>
> That's the problem. I have no idea on how to configure a machine to
> output logs to a serial port. And I don't really know what logs should
> be put there.
> '/var/log/messages' are being kept on the disk after a reboot, and it
> doesn't contain anything wrong, in my opinion...
>
>

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