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Getting Ready This guide can be used to install and run OS X 10.10 alongside 10.9 Mavericks, 10.8 Mountain Lion, 10.7 Lion or 10.6 Snow Leopard, provided that your Mac supports OS X Yosemite.
WHAT SIZE DO I NEED TO MAKE A YOSEMITE OS X BOOT DISK HOW TO
Make sure “ Erase destination” is checked and click the “ Restore” button. Today, we’ll be showing you how to dual boot OS X Yosemite and Mavericks on your Mac. Copy everything from USB stick EFI and overwrite everything in HDD EFI.
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You’ll also notice that the “ Restore” button in the lower right corner now becomes active (clickable). Create a new GUID partition with Disk Utility Install OS X and follow instruction on the screen until its done Reboot wont work from HDD, use USB stick to boot from HDD Continue installation MAKE HDD BOOTABLE 1. The name of the partition (see “ 2” below) should appear. Now drag the partition of the flash drive onto the input field of the “ Destination” until a green “ +” appears. You’ll see something similar to the image below just under point “ 1“.
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Next select the “ Restore” section and click the “ Image…” button next to the “ Source” input field.Ī window will open in which you have to select the previously copied or moved “ InstallESD.dmg“, and then click “ Open“. Open Disk Utility (you can find in the “ Utilities” folder of your “ Applications” folder, or you can use Spotlight to find it).įirst we must find our USB drive on the left side of the Disk Utility window – make very sure that you’re picking the right device, since the drive will be completely erased! In my example I’m using a 64Gb Kanguru eFlash (very fast USB pen drives and great customer service!).įirst select the correct drive and partition. As you can see in the image below I selected a partition of the 64.39 Gb drive. CAUTIONThe drive will be completely wiped in this process!