if you have a working osx install then use edp 1.7.pkg and change the "install to" path it should show you a list of drives that you can "install" to so select your "usb installer stick" then when edptool.command opens build it for your D630 when finished. take and boot your D630 with it. edp installer is very versatile. it will build on whichever partition or hard drive it was installed to and not affect the others. when the machine boots up to osx then install edp1.7.pkg to that hard drive and again build for your d630 but do not use the edptool.command from usb as it only affects the usb stick, use the edptool from your d630 extra folder like i said before edp only works on the drive that it was installed to.