Making a USB Boot Drive for MacOS Sierra

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Well it’s time once again to make USB boot disks, I’ve been using Diskmaker X forever, but with Sierra, there are some idiosyncratic things:

  1. Download from the Mac App Store the Sierra download. This will take a while as it it is over 4GB, but this is the image that Diskmaker X uses.
  2. Make sure that you reformat the disk completely before starting. It doesn’t seem to like already formatted disks and crashes with an error about not being to make things.
  3. You now get notifications as it moves along which is pretty cool.

 

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