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I am trying to install Yosemite on a 2006 Mac Pro 1,1 3 GHz Dual-Core (Mac-F4208DC8) Boot Rom Version: MP11.005D.B00, SMC Version: 1.7f10. Right now, I am stuck on 10.7.5 (Lion). The install is to a new, pristine 1 T. hard drive purchased for this very purpose. Currently, I am at the place...