Step 6: In the Terminal window type sudo followed by a space. Step 5: Open a Terminal window via Applications → Utilities → Terminal. Step 3: Open Finder → Applications and right-click on Install 10.12 Developer Preview and select Show Package Contents. Step 2: Once macOS Sierra is downloaded, close the install pop-up that appears using Command (⌘)+Q Once the public beta for macOS Sierra opens, anyone who signs up will be able to redeem a download code and install the beta. Since macOS is currently only available for developers, you’ll need to first redeem a download code via Apple’s developer website. Step 1: Download macOS Sierra from the Mac App Store. Make sure that the disk you choose to use doesn’t contain anything that you want to keep, because the following tutorial will purge everything on the drive. Kingston sells an 8GB USB 3.0 drive for less than 6 bucks.
Your USB drive should be at least 8GB, and a USB 3.0 drive is preferred. In the following video tutorial, we’ll show you how.Ī note on flash drives: You will need a USB flash drive to make this work.
Not only will this walkthrough work for the macOS Sierra Developer Preview, but it will also work for the public beta and future final releases. If you want the ability to perform a fresh and clean install of macOS Sierra, then you should consider creating a macOS Sierra USB install disk.
