RHEL 5 VM panics on boot if converted and uploaded to glance from a vmdk file.

Issue

• RHEL 5 VM panics on boot if converted uploaded to glance from a vmdk file.
• Tried converting the vmdk to qcow2 and then upload to glance but the openstack instances always panics on boot.

Booting ‘Red Hat Enterprise Linux Server (2.6.18-53.e15)’

root (hd0,0)
  Filesystem type is ext2fs, partition type 0x83
kernel /vmlinuz-2.6.18-53.e15 ro root=LABEL=/ rhgb quiet
  [Linux-bzImage, setup=0x1e00, size=0x1b3645]
initrd /initrd-2.6.18-53.e15.img
  [Linux-initrd @ 0x37d96000, 0x259dd4 bytes]

Memory for crash kernel (0x0 to 0x0) not withstanding possible range
PCI: PIIX3: Enabling Passive Release on 0000:00:01.0
Red Hat nash version 5.1.19.6 starting
Unable to access resume device (/dev/sda2)
mount: could not find filesystem '/dev/root'
setuproot: moving /dev/ failed: No such file or directory
setuproot: error mounting /proc: No such file or directory
setuproot: error mounting /sys: No such file or directory
switchroot: mount failed: No such file or directory
Kernel panic - not syncing: Attempted to kill init!