Kdump Not Starting On 2.6.32-200.13.1.el5uek No crashkernel parameter spec
904844Dec 12 2011 — edited Dec 12 2011I have been looking into migrating our CentOS machines to OEL using the Unbreakable Kernel; however I seem to be having an issue on all of my systems when setting up kdump (I have don this 100s of time in CentOS and RHEL so I am not sure why it doesn't work with UEK.
When the kdump service starts on boot or when I attempt to restart it from the command line I receive an error message "No crashkernel parameter specified for running kernel" this generally would mean i forgot to specify the crashkernel parameter in the /boot/grub/grub.conf but the parameter is specified (and I rebooted the system multiple times since the parameter has been set)
---- start grub.conf -----
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title Oracle Linux Server (2.6.32-200.13.1.el5uek)
root (hd0,0)
kernel /vmlinuz-2.6.32-200.13.1.el5uek ro root=LABEL=/ crashkernel=128M@16M
initrd /initrd-2.6.32-200.13.1.el5uek.img
title Oracle Linux Server-base (2.6.18-274.0.0.0.1.el5)
root (hd0,0)
kernel /vmlinuz-2.6.18-274.0.0.0.1.el5 ro root=LABEL=/ crashkernel=128M@16M
initrd /initrd-2.6.18-274.0.0.0.1.el5.img
The odd thing is that when I boot into the NON uek kernel kdump starts just fine, but when I choose the UEK kernel I always receive the message "No crashkernel parameter specified for running kernel"