When something goes wrong with your Mac, it’s a boon to have a separate, external drive that you can work from — but Apple no longer makes that easy. Here’s how to do it.
The short answer to how you make a bootable external working drive is very, very carefully. You’re going to completely wipe that external drive, for one thing, so you really need to be sure that you’ve copied off any important data from it.
It’s also possible that if you make a mistake along the way, it’s conceivable that you could end up wiping your Mac’s internal drive. It’s possibly fortunate, then, that Apple throws many hurdles in the way to stop you making a macOS Ventura external bootable drive.
Or rather, it really wants to stop other people making such a startup drive and plugging it into your Mac. Apple has taken steps to secure your Mac from bad actors, it’s just a shame it means you have to go through two broad steps to make this work.
Read more at AppleInsider.com