Macbook air - Problem in boot USB

Discussion in 'MacBook Air' started by omarmonteiro, May 25, 2012.

  1. omarmonteiro macrumors newbie

    May 25, 2012
    :(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.


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


    how can I solve this problem?

    Thanks for the help.

    (Note: Do not repair my bad English.)
  2. halledise macrumors 65816

    May 7, 2009
    Hamilton Island, Whitsundays, QLD Australia
    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:

    Note: In order to create an external Lion Recovery using the Lion Recovery Assistant, the Mac must have an existing Recovery HD.
  3. applerepairs macrumors member

    Nov 21, 2011
    Fulham, London
    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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