@passthejoe > Booting to a USB drive on the iMac is annoying: You need to use a wired keyboard. It won't work with that machine's regular keyboard, a Logitech wireless.That doesn’t sound right. I’ve booted tons of Macs into alternate modes with all kinds of keyboards, including Bluetooth and proprietary wireless like Logitech’s. Maybe the Option key isn’t where you expect on boot and it gets corrected in software once the OS has loaded?
