How to make an external bootable working drive in macOS Ventura

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 c...