Originally Posted by bsil
The whole issue was the target disk not accepting his version of the OS.
No, the whole issue was the disc he was using was not compatible with his machine. Installing to an external would require a machine that can boot the 10.6.0 disc...his cannot...thus he would need an entirely different (older system) to use both methods suggested (mine and yours).
My point about my way being faster, target disk mode installs directly to the imac's hard drive... With BOTH of our methods, he would still need to install, update to at least 10.6.3... My way is just faster, because he's not cloning after doing all that.