How to Download and Install Older macOS Versions With Terminal
by Brendan Hesse from Lifehacker on (#4TS0G)
When it's time to install a new version of macOS or download a new update, nearly everyone turns to the Mac App Store to start the process. While the App Store makes OS installations easy and relatively painless, it doesn't always work-and it might be time to turn to Terminal (and a little creativity) instead.