Ok I succeded on a Mac mini2,1 with my brand new semi-automated USB key.
I doing it step by step with my script but, it will be have a function to do it in one shot.
Then I plan to have the ability to patch it “at will” for any other Mac I’d like to test.
Tiamo’s boot.efi is just incredible.
I working on my automation code now for some days – nights, but it’s going to be nice.
Here a snapshot of the MacMini2,1 :