To create a macOS Sierra USB installer, you’ll need a USB 2.0 or USB 3.0 drive with a capacity of at least 8GB. You can quit the installer application by using the keyboard shortcut Command-Q. Quit the install application, as this is meant for users who wish to upgrade their Macs to Sierra, not create a USB installer. Once it has completed the download, the Sierra installer will automatically launch. Using a compatible Mac, simply launch the App Store, find Sierra from the homepage sidebar, and download the installer. To create a USB installer for macOS Sierra, you first need to download the installation application from the Mac App Store. Step 1: Download macOS Sierra from the Mac App Store Here’s how to create a USB installer for macOS Sierra. Thankfully, this process can be accomplished with just a single Terminal command. How to Create a macOS Sierra USB InstallerĪpple makes upgrading to its latest operating systems easy thanks to the Mac App Store, but some users prefer to have a physical copy of a full macOS installation to aid in upgrading multiple Macs, installing from scratch on a new drive, or for troubleshooting purposes.Īpple no longer distributes macOS in a boxed physical form, so it’s up to users to create their own USB-based installers.
