Thanks for the tip. I sort of knew that already, but I've always been curious 
if hitting left arrow would wrap to the bottom
of the list. For example, in my case, if I wanted to boot from my external 
drive, rather than hitting right arrow 3 times and
then pressing enter, would hitting left arrow and enter accomplish the same 
task. It's not that hitting right arrow 3 times
is difficult or anything, but if there's a way to speed up the process, that 
would be great. Also, is there a way to
rearrange the order, so that maybe the recovery partician could be last? In all 
the time I ran regular Lion, the recovery
partician wasn't an issue; I could hit right arrow twice to boot from my 
external drive, but once I got ML, I found out quite
by accident that the recovery partician is now in the way. I'm very accustomed 
to selecting the drive I want to boot from,
but will still very much appreciate any additional tips you might be able to  
provide.
Missy

-----Original Message-----
From: [email protected] 
[mailto:[email protected]] On Behalf Of Phil Halton
Sent: Monday, September 10, 2012 7:22 PM
To: Mac OSX & iOS Accessibility
Subject: Option Key Startup

With the help of a sighted neighbor I was able to sus out the following about 
the option key startup options. This may be
useful for others wanting to have a degree of certainty when booting by this 
method

Pressing and holding "option key" for a good, healthy 10 or 15 seconds after 
powering on brings up a drive selection screen
with (in my case at least) the internal Macintosh HD highlighted. There is an 
upward pointing arrow below the currently
selected item.

Pressing right arrow once brings the highlight to the Recovery partition, and a 
second right arrow brings me to the first
(and only) external bootable drive.

pressing return here boots the mac from the external bootable drive.

The selection highlight "wraps" back around to the first item in the list of 
drives after the last is reached, so it is
important to know how many bootables you have - you can't rely on just slamming 
the cursor to the right and pressing enter to
boot from the last item.


I imagine if there was more than one external bootable partition these would be 
listed - but in what order I do not know.

In my case at least, I now know with certainty that two right arrows and a 
return key will boot from my SuperDuper bootable
clone from the drive selection screen. A little educated guesswork and I 
imagine anyone could figure out the order of their
system bootable drives as well.


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