The process takes only a minute or two and requires your Apple ID. You will need to sign up to take part in the program, if you haven't already. With your backup Mac or partition ready, head to the Apple Beta Software Program site.
Click Apply and wait a minute or two for the new partition to be created. You can leave the Format as OS X Extended (Journaled).ĥ. Choose a size for the new partition by dragging to resize a wedge of the pie chart that represents your hard drive (MacOS Sierra is only 4.86GB) and give it a name. Click the ' +' button below the Partition Layout diagram.Ĥ. Select the disk you'd like to partition from from the left panel and then click the Partition button.ģ. It's easy to accomplish in a few easy steps:Ģ. I don't have an extra Mac lying around, so I created a partition for MacOS Sierra on my MacBook Pro.
If you can't wait, I suggest you install the beta on a secondary Mac if you have one or, failing that, on a separate partition on your primary Mac. First, a disclaimer: As with any beta software, you may run into some issues and odd behaviors with MacOS Sierra that should have you thinking twice about jumping in now instead of waiting for the final release to arrive this fall.