Capture OOPS
Gilboa Davara
gilboad at gmail.com
Mon Apr 23 07:54:50 UTC 2007
On Sun, 2007-04-22 at 11:12 -0600, Ashley M. Kirchner wrote:
> Seems I've asked this before, but I'll be darned if I can find the
> answer somewhere in my archives. I need to capture a kernel OOPS
> somehow. I've got a server that seems to be trigger happy and locking
> up/crashing once every 24 hours or so. The unfortunate thing is that
> I'm not there when it happens to look on the monitor and see if I can
> discern anything from there (usually one of the other guys come in
> before me and they simply hit the reset button because they don't
> understand the gibberish on screen anyway.) So, I need to figure out a
> way to capture that OOPS. Since it's not send to syslog, I can't send
> it to another machine for logging. What other methods are there of
> doing this? This machine doesn't have a serial link that I can link up
> to another either. So, anyone?
>
> -
Simple.
- Connect the machine to another machine using a NULL serial console.
- Add the following parameters to your grub:
console=ttyS0 console=ttyS0,57600n8
(Where ttyS0 is serial0, 57600 is speed and n8 is 8 bits, no parity)
- Run cu [1, uucp] or minicom and log all the output.
- Gilboa
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