A handy new feature of macOS Sequoia allows a mounted volume to self-eject once a process copying files from it ends. Here's how to use it. If you've ever copied a large file from a mounted .dmg file ...

I'm trying to make a copy of my OSX partition so I can reinstall it after I repartition my drive. I have made a .dmg file that's big enough to hold everything. Here's where I get confused: I regularly ...