Mac tips and tricks are so hot right now. So here is a great one.
If your regular boot disk is damaged or if you can't set the CD or DVD as a startup device from the system preference, try one of the following options:
- Restart your computer and immediately press the
Optionkey. Icons for all available startup volumes will appear. Click the one you want to boot from, and then click the right arrow button to complete the startup process. - Restart your computer and immediately press
Command-Option-Shift-Delete. You must press all the keys at once. The computer will start to boot from the CD or DVD drive. If there isn't a bootable disc inside the drive when you begin the reboot, the computer will attempt to boot from another partition or drive. - Restart your computer and immediately press the
ckey. The computer will look for a bootable CD or DVD and, if it finds one, will use it as its startup device.
There you have it. Hope it helps.