If I have Mojave do I need to install another iOS before going to Big Sur? I keep downloading it but it won't install
Why won't Mojave install on my MacBook Air after installation?
MacBook Air 11″, macOS 10.14
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You need a 2013 MacBook Air, or later, and 35.5 GB of available storage on the Mac before Big Sur will upgrade it from Mojave.
