The sudo part asks your computer to use the softwareupdate command with a bit more rights, so it allows you to install Mac OS updates for instance.We’re here, ready for the terminal? Use spotlight (CMD+space) to find the terminal application and open it Now while you’ve booted into your fresh clean OS, please make sure that you always update the OS first before continuing with the rest. Install the OS new without relying on an internet connection through recovery.Completely delete the contents of the original harddrive (of course make a Time Machine backup up front!).For that I create a boot drive (A USB Drive works fine) using Apple’s createinstallmedia command you can find here How to create a bootable installer for macOS - Apple Support So to actually get started, especially in an upgrade case, I usually start out completely fresh.
It can be a bit of a daunting environment at first, but once you get the hang of it, a lot faster than your regular mouse setup!/ Getting started with a new installation
Please be aware that a lot of this contains the terminal.
So to make that process simple, over the years I’ve developed a bit of a flow to get to where I want to be, setting up my machine and installing software. Or I screwed up - again, in the terminal or otherwise. Or, worse, setting up the machine again once in a while, just so it feels more neat, or Apple decides to throw in a new update. There’s one thing I love most of a new job, and one thing I don’t like at all - getting a new machine.
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