On x86_64 I am trying out kexec/kdump
The root fs is reiserfs
1. Boot the current kernel with crashkernel=64M@16M
2. # cat /proc/cmdline
root=/dev/cciss/c0d0p5 selinux=0 resume=/dev/cciss/c0d0p3 splash=silent numa
=off crashkernel=64M@16M
root=/dev/cciss/c0d0p5 selinux=0 resume=/dev/cciss/c0d0p3 splash=silent numa
=off crashkernel=64M@16M
3. Preload the capture kernel using
kexec --load-panic /boot/vmlinux-2.6.16-rc4-3-kdump --args-linux --append="root=
/dev/cciss/c0d0p5 selinux=0 resume=/dev/cciss/c0d0p3 splash=silent numa=off"
/dev/cciss/c0d0p5 selinux=0 resume=/dev/cciss/c0d0p3 splash=silent numa=off"
4. force a panic echo c > /proc/sysrq-trigger
While booting the capture kernel,
it panics with the following message:
VFS: Cannot open root device "cciss/c0d0p5" or unknown-block(0,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
1. When the capture kernel boots what happens to the io/nw drivers and any other modules which were inserted into the first kernel
2. Is there anything wrong with the steps I followed
-lnxlrn
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