There was another thread on this topic. I posted our details. We had two responses. Now, I cannot update that thread. So…
We have some old HP Compaq DX2200’s that we’re trying to put Solid State Drives in hoping the increased drive speed will prolong the usability of these old machines. When we try to FOG the machines, we get the FOG error:
“The second argument  must be a valid device (ex: /dev/hda1)”
We can put the drive in another model PC, FOG it and the install it in the DX2200 and the OS boots and the machine works fine. The DX2200 has the latest BIOS.
We were getting an “hd is null. no hard disk found.” error and it was recommended we upgrade to 1.1.0, which we did. We also applied the latest kernel.
What do we need to do?