[et-mgmt-tools] Kernel panic while booting rhel4 via pxe

Dhawal Doshy dhawal at netmagicsolutions.com
Sat Mar 31 10:39:39 UTC 2007

niyaz chistee wrote:
> Hello guys,
> Once again. After successfully installing a virtual xen machine via 
> cobbler + koan I moved a step forward in installing a new physical 
> machine via cobbler + koan.
> I have installed cobbler and koan on EL4. All is set well. Now when I 
> boot the client it gets ip address from the server and show my profile 
> (rhel4x) in the pxe boot menu. Now when I write this:
> boot: rhel4x
> and boot the system after doing some initialization it fails and shows this:
> VFS: Cannot open root device "<NULL>" or unknown-block(104,3)
> Please append a correct "root=" boot option
> Kernel panic - not syncing: VFS: Unable to mount root fs on 
> unknown-block(104,3)
> Well. I was really not expecting this as everything was fine. But it 
> came. What should I do?
> Please list members do reply to my email this time.

it would help if you post your relevant 'cobbler list/report' and 
content of 'pxelinux.cfg/default'

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