On Sat, May 15, 2010 at 18:50, Onkar Mahajan <[email protected]> wrote:
> The Situation is this :
>
> I have compiled Xen Hypervisor , and it just hangs at some point
> during the boot. I want to send to a relevant Xen mailing list the sequence
> of events before the hang.
>
> When the System hangs , I just restart the system uncleanly ( press the
> power button for 30 sec)
> and reboot the machine with the working kernel. Now, I want to see in
> /var/log/messages the
> sequence of events that occured  before the hang in the previous boot. I am
> not able to
> see those log messages , they are overwritten during every boot.

I never tried this before, but maybe you need to explore netconsole.
It's a way to deliver your system message to other machine using
network connection. Or at least serial console, IMHO.

Good luck...

-- 
regards,

Mulyadi Santosa
Freelance Linux trainer and consultant

blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com

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