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Here's something to try... If your Mac Pro has issues with booting from USB but will boot from a DVD, create a DVD from the USB installer. If you know how to do this then ignore the rest, grab a dual-layer DVD and get cracking. If not, read on... First, mount your USB installer and then go to Disk Utility. Highlight the partition Install OS X Yosemite on ...


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Mac OS X SLA doesn't allow to run older Mac OS Xs in a VM until Max OS X Server 10.6.8 or Mac OS X 10.7 and later. Additionally there are some technical restrictions. So none of them will run directly in VMware Fusion, Parallels or VirtualBox. To get an image of the MacBook3,1 running in one of those three you would have to update it to Snow Leopard Server ...


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To make a USB installer from the 10.7 .DMG you need to open the .DMG, then open the installer application by right-clicking and selecting Show Package Contents and then find the actual installer itself, InstallESD.DMG. Use the Restore function in Disk Utility to copy InstallESD.DMG to your USB device (if you receive any errors, try mounting InstallESD.DMG ...


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If you've installed Yosemite it will automatically have created an invisible recovery partition and so you may as well delete the recovery partition you created. Keeping a copy of the Yosemite installer on a USB stick is definitely a good idea though in case your drive ever dies or you need to perform a clean install (on an SSD for example). Alternatively, ...



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