From this somewhat dated article:
http://forum.maccast.com/index.php?/topic/14619-can-i-boot-os-x-off-an-external-usb-dvd-drive/
it sounds like you just have to hold the option key down after the
bootup chime and eventually you'll get a menu to choose which drive to
boot from. Not sure if VO will be active at that point. Can you just put
the disk in your external drive and then choose it from Startup Disk in
System Preferences?
CB
On 1/13/13 9:23 AM, Gavin Grundlingh wrote:
Hi all,
Is there any possible way to disable my broken internal superdrive in
the EFI firmware of the Mac without having to actually open up the
computer and physically disconnect it? Apparently, this is what I'd
need to do to get an external DVD drive to boot on here.
Regards,
Gavin Grundlingh
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