tamawars.blogg.se - Ultimate boot cd for mac

Bootable optical media (CD or DVD) on Macs equipped with Apple’s Super Drive or a USB thumb drive formatted with a GUID partition type and containing a macOS installer or a usable operating system.Īpple advises against booting from external storage containing a version of macOS earlier than the one your Mac shipped with.

Starting up your Mac from an external disk requires the following: