Saving Disk Images (i think)
Hello, i have some bootable USB keys with all of the mac os's on them, as well as some diag software for each, and i am wanting to back them up on an external hard drive. i'm having a pretty hard time doing this, or even figuring out how, without just buying a bunch of usb's and cloning them onto it. i would like to just make a folder, or even an iso file that i could go and save on my external hard drive. anyone have any suggestions on how to do this?
You can take an external disk, and partition it into 'n' partitions, and make each partition a bootable partition with the different macOS versions you want to have.