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Cannot boot 2012 Macbook Air from external HD

G

Globe199

macrumors member
Original poster
Aug 6, 2009
30
0
Long story short, I had to wipe the internal HD on my 2012 Macbook Air, including the recovery HD. I tried twice to boot to Apple's Recovery Console (using Command+R), but it failed both times with error 2003F. Apple phone support had no idea what that meant. Wow.

Anyway, I tried booting from an external HD that has Lion installed from a corporate disc image. It's not an install disk, it's the actual installed OS. All I get is the empty-set symbol (circle with diagonal line thru it) when I choose the boot device. Nothing works. I also tried booting from the "Recovery HD" on the external drive. I'm now going to try booting from an external DVD drive; I'm not optimistic.

Any suggestions? I'd rather not hike back to the Apple store.
 
Globe199 said:
Long story short, I had to wipe the internal HD on my 2012 Macbook Air, including the recovery HD. I tried twice to boot to Apple's Recovery Console (using Command+R), but it failed both times with error 2003F. Apple phone support had no idea what that meant. Wow.

Anyway, I tried booting from an external HD that has Lion installed from a corporate disc image. It's not an install disk, it's the actual installed OS. All I get is the empty-set symbol (circle with diagonal line thru it) when I choose the boot device. Nothing works. I also tried booting from the "Recovery HD" on the external drive. I'm now going to try booting from an external DVD drive; I'm not optimistic.

Any suggestions? I'd rather not hike back to the Apple store.
Click to expand...

I'm guessing you mean a 2011 MBA, since the 2012s aren't out yet.

I have actually booted from an external disk I yanked out of my Mac Mini and it worked fine. Do you have a time machine backup you can use...that's the easiest thing to use to recover Lion that I have found...no need for an install image or internet connection to do it.
 
gentlefury said:
I'm guessing you mean a 2011 MBA, since the 2012s aren't out yet.

I have actually booted from an external disk I yanked out of my Mac Mini and it worked fine. Do you have a time machine backup you can use...that's the easiest thing to use to recover Lion that I have found...no need for an install image or internet connection to do it.
Click to expand...

OK, 2011. No time machine, it's a brand new machine, bought last week.
 
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