Kernel error upon boot up

[skeptical]

I compiled a Xen kernel and upon reboot into the new kernel I'm getting this:

Loading dm-log.ko module
Loading dm-region_hash.ko module
Loading dm-message.ko module
Loading rm-raid45.ko module
Device-mapper: dm-raid45: initialized v0.25941
Waiting for driver initialization.
Scanning and configuring dmraid supported devices
Creating root device.
Mounting root filesystem.
mount: could not find filesystem "/dev/root"
Setting up other filesystems.
Setting up new root fs
setuproot: moving /dev failed: No such file or directory
no fstab.sys, mounting internal defaults
setuproot: error mounting /proc: No such file or directory
setuproot: error mounting /sys: No such file or directory
Switching to new root and running init.
unmounting old /dev
unmounting old /proc
unmounting old /sys
switchroot: mount failed: No such file or directory
Kernel panic - not syncing: Attempted to kill init!

Do you guys have any ideas as to why this is happening? I do have a raid controller card on the server. I'm running Centos 5.5.

[Segfault]

mount: could not find filesystem "/dev/root"

Where this /dev/root comes from? Grub? fstab?

If you have RAID controller why dmraid? dmraid is software RAID designed for fakeraid.

[skeptical]

Here is what I got in grub.conf:

# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE: You do not have a /boot partition. This means that
# all kernel and initrd paths are relative to /, eg.
# root (hd0,0)
# kernel /boot/vmlinuz-version ro root=/dev/sda1
# initrd /boot/initrd-version.img
#boot=/dev/sda
default=0
timeout=5
splashimage=(hd0,0)/boot/grub/splash.xpm.gz
hiddenmenu
title CentOS (2.6.18-194.11.1.el5xen)
root (hd0,0)
kernel /boot/xen.gz-2.6.18-194.11.1.el5 dom0_mem=2048m
module /boot/vmlinuz-2.6.18-194.11.1.el5xen ro root=LABEL=/
module /boot/initrd-2.6.18-194.11.1.el5xen.img
title CentOS (2.6.18-194.el5)
root (hd0,0)
kernel /boot/vmlinuz-2.6.18-194.el5 ro root=LABEL=/ rhgb quiet
initrd /boot/initrd-2.6.18-194.el5.img

How do I check to see whether the second kernel (the working one) is using dmraid or not? I believe Xen HVM has issues with using soft raid.