Capture OOPS

[Gilboa Davara]

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