| Date: Thu, 21 Feb 2008 13:17:09 +0100 (CET) | title Fedora 8 (2.6.23.15) | root (hd0,0) | kernel /vmlinuz-2.6.23.15 ro root=/dev/md1 console=tty0 | console=ttyS0,115200 | initrd /initrd-2.6.23.15.img | | So the kernel is also pumping the information via the first com port. | Start minicom at the other machine, select right setting for baudrate | 115200 and voila. You will see output, even when it crashes. | | This is really then the only way to see if the kernel is really crashing | at something. I have the luxery here to have console servers with buffers. | So if a machine crashes, I can read the buffer of the output, and see what | happened. The kdump tool is also good for this. It will give you a dump that you can analyze with crash(8). It does not require a serial port (getting scarce these days). The trouble is that this stuff is not well documented. Not that many people use it, so you can bump into problems. See: http://fedoraproject.org/wiki/FC6KdumpKexecHowTo This is for FC6. I don't know of a newer one. crash(8) is always playing catch-up with the kernel releases. The update repositories don't seem to have new enough versions. You are best off getting a source RPM from the author's web site and building it. I have posted a few messges to this list intended to help folks with this tool. Here are a couple: http://www.redhat.com/archives/rhl-list/2007-June/msg03592.html http://www.redhat.com/archives/fedora-list/2007-December/msg02780.html
