Glenn Fleishman

Freelance technology, science, and typography journalist

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Jan 20, 2020
How to clone a macOS Catalina drive

Until macOS 10.15 Catalina, Mac users knew: their startup volume was a single volume, just as it appeared! (Okay, for Fusion drive users, there are two physical drives managed by software to appear as a single “disk drive,” but that’s separate from…