I’m toying with the idea of installing Mojave on a secondary partition, and the install guides I’m seeing are telling me I have to back up my drive, wipe the whole thing, create two partitions, and then reinstall my primary drive.
That seems insane to me.
Can I shrink partitions and create new ones (like in Windows) in the empty space?
Or would I be better to buy a USB drive of some sort and boot Mojave from that?
(Note: I realize that this is a risky activity. I’m not going to do this without backups. I get it. I just don’t want to jump through the wipe/restore process if I don’t have to!)