With features like dark mode, stacks, and four new built-in apps, Apple’s macOS Mojave is gaining a lot of interest. If you would like to try macOS Mojave, below instructions will help you create a bootable macOS Mojave USB media that you can use to perform clean install.
Before you start it is important to backup your current data and check compatibility, most Mac models introduced in 2012 or later are compatible with macOS Mojave, and you can upgrade directly from OS X Mountain Lion or later. See compatible Mac models.
Next you’ll need a USB 3.0 flash drive with at least 8GB of storage. If you’re a MacBook user USB-C flash drive might be your best option, else you can always use USB-C to USB adapter and regular USB 3.0 flash drive.
How to create a bootable macOS Mojave 10.14 USB install drive
- Download macOS Mojave, also you’ll be able to download it straight from the Mac App Store.
- Once macOS 10.14 Mojave is downloaded, close the installer that appears using Command (⌘)+Q.
- Open Finder → Applications and right-click on Install macOS 10.14 and select Show Package Contents. Open Contents folder then → Resources.
- Open a Terminal window via Applications → Utilities → Terminal. In the Terminal window type
sudofollowed by a space.
- Drag createinstallmedia to the Terminal window from the Finder location in Step 3.
- Then in the same terminal window type space then
--volumefollowed by a space.
- Connect your USB drive to your Mac, and it should appear in the Finder window. In Finder → Go → Go To Folder. In the Go to the folder box type /Volumes and click Go.
- Drag the USB flash drive volume into the Terminal window and press Return on the keyboard to submit the full terminal command. If you get prompted to enter in your admin (sudo) password please do so and press return on the keyboard or else command will not execute.
- Type a ‘y’ to continue when prompted, and press return on the keyboard. The install process will start by erasing the contents of your USB drive and copying the installer files to the drive. The entire process can take a while (around 30 minutes).
- To boot from our newly created USB flash drive, first restart your Mac and press and hold the Option (⌥) key immediately upon hearing the startup chime. Release the key after Startup Manager appears. Startup Manager will scan and list connected drives and volumes that can be booted from. We can select our USB flash drive by clicking on it.