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Macbook air - Problem in boot USB

O

omarmonteiro

macrumors newbie
Original poster
🙁Hey Guys, good afternoon.

I have a problem on my macbook air, I'm trying to format, using a USB device that I created using the image of the lion 10.7.4, but the version of the lion of my macbook is 10.7.2. maybe that's the problem.

When I boot via usb, a circle appears scratched.

mac.jpg


And I can not format or reinstall anything, and where I am, I do not have wifi internet.

So,

how can I solve this problem?

Thanks for the help.

(Note: Do not repair my bad English.)
 
you need another usb containing the Lion Disk Recovery partition on it to be able to startup and then you can install Lion to your USB stick

link here:
http://support.apple.com/kb/DL1433

Note: In order to create an external Lion Recovery using the Lion Recovery Assistant, the Mac must have an existing Recovery HD.
 
This sign is called no entry which mean either hard drive is faulty or problem with
logic board.

Get it checked from the Apple Expert...
 
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