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We’ll explain how to get those files on your Mac in a sec.ĭo you have your external drive ready? Great! Let’s grab the installer files now. The drive should be formatted as Mac OS Extended.
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What you need to create a bootable USB for Macīefore we begin, here are two main things you need to create a bootable USB: Whether it’s an external hard drive or a USB ‘thumb’ drive, both are considered bootable drives.įor the sake of clarity, we’ll simply refer to any external drive as a USB drive. Simply stated, a bootable USB Mac drive is one that has a version (or versions) of macOS available on a disk that isn’t your machine. Try free What is a bootable USB or external drive?
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