I tried the above method on my 2006 duo 2 iMac and only got the hard drive and recovery drive listed on reboot. I copied and pasted the enterprise.cfg file. I do not know if that would make a difference.
I have had the same problems as everybody else. I am pretty sure the sd card is not the issue. I wonder if using Virtualbox with Windows 10 on an iMac could be the problem. Has anybody had success with this method?