Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to boot a mac from firewire [title] Locate your mac computer's firewire port. [step] It will usually be located near the usb port and will be just a bit narrower and taller than usb ports, with angled corners on one side of the port. [title] Plug the firewire connector for your firewire drive or device into your macintosh computer's firewire port.

Ending1: [title] Hold down the " option " key as you power your macintosh computer up. [title] Select the firewire drive from the list of available boot-up options that displays on your macintosh screen. Ending2: [step] If you have other firewire leads on your computer, you won't need to plug them into either usb port. [title] Plug your usb drive or device into the firewire port. Ending3: [step] Make sure that your computer's power adapter fits inside the firewire port that is located on the side of the usb port. [title] Connect firewire's command prompt to the firewire drive you plan to boot. Ending4: [step] Your mac computer will automatically be plugged into its firewire port; if you use the wrong port, your macintosh computer will automatically ask for a new one. [title] Click " ok " to bring up the firewire driver interface menu.

Answer format: ending1/ending2/ending3/ending4