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:
- 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.
- 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.
- You now get notifications as it moves along which is pretty cool.