RHEL 4 machine converted fine, but get kernel panic

[mashkoor.qadir]

I have a bunch of old Red Hat 4 servers that I need to convert to VMs. I am using the standalone converter 5.0 and the VMs range from Red Hat version 2.6.9.-42 to 2.6.9-42. Some of the machines I can P2V with out any issues but a majority of them fail with

mount: error 6 mounting ext3
mount: error 2 mounting none
switchroot: mount failed: 22
umount /initrd/dev failed: 2
for more detail see the attached pic.

error.jpg (18.68 KiB) Viewed 8984 times

please help.