CD Imaging

I am trying to image an HP dc5100. The Hard Drive went bad; so I put in a
new one.

When I go to image the PC the CD fails to boot into imaging. Here are the
last couple lines of the Boot Process:

RAMDISK: Compressed image found at block 0
Invalid compressed format (err=2)
VFS: cannot open root device "<Null>" or unknown block (8,8)
Please append a correct "root=" boot option
Kernel Panic - not syncing: VFS: unable to mount root fs on unknown block
(8,8)

I am using the iso from the most current IR and patch for zen 7.

Any help will be greatly appreciated.

The disk works fine on every other PC. So it has to be something with
this one.

Thanks: