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Great job for your guide but i'm stucked in the installation process.
Here's my specs :
Optiplex 760 SFF Intel Pentium E2220 @ 2,4 GHz
3 GB RAM
ATI Radeon HD 5450
Internal Drive : 160 GB
External USB Drive 1 TB with a 200 GB Mac OS HFS+ Journaled formated partition
Other hardware is standard Dell Optiplex 760 config
100% legal copy of Mountain Lion (from Apple servers with the Internet Recovery system)
I followed every steps of your guide, booting is fine but when I try to launch the installation, it says that it cannot because Essential systems components are missing. I tried to install in french and english, it's the same.
I also tried to skip OS Install and OS Intall.mpkg steps in your guide living the original files from the original Mac OS Install ESD but still the same.
I can't figure where I'm wrong because I tried all options. Any ideas ?
By the way, do you know what model of motherboard the Optiplex 760 is equivalent to ? I want to try Kakewalk but I don't know how to choose between Gigagbyte list of motherboards (list at : http://www.kakewalk.se/compatibility/
Thanks for help and great job !