We had the exact problem that you described which was that it kept trying to boot from the CD. These are other methods or tricks to eject a disc from a Superdrive when it refuses to using software or the default button hold down methods, obviously be careful while attempting. In that condition, you can use a different command, diskutil, to eject a specific device. Question: Q: Is there a Terminal command to eject disk? Lifewire uses cookies to provide you with a great user experience.
