Circle with slash when booting from Mountain Lion USB Flash Drive

Discussion in 'OS X' started by laxexquis, Nov 4, 2012.

  1. macrumors newbie

    Joined:
    Sep 1, 2010
    #1
    I created a bootable flash drive with Mountain Lion on it. My computer has Leopard 10.5.8 installed, and after reading online I thought I could still boot form a Mountain Lion USB drive and erase the hard disk and do a clean install. I tried booting it on another 10.5.8 computer and it worked, just not on mine. I have a Core 2 duo processor and 2 gb of ram, when I click on the USB flash drive from the boot screen it just gives me a circle with a slash through it on a gray screen.

    Any idea what causes this?
     
  2. macrumors P6

    Weaselboy

    Joined:
    Jan 23, 2005
    #2
    Does your machine meet the min. specs listed at the top of this page?
     
  3. thread starter macrumors newbie

    Joined:
    Sep 1, 2010
    #3
    MacBook (Late 2008 Aluminum, or Early 2009 or newer)


    I have the black MacBook and just realized it is not included in this specification. Damn. I read it isnt because of the video card.

    Looks like I'll be upgrading to 10.7, is Lion a good OS? It seems like it may not have been considering it was replaced so quickly.
     
  4. macrumors P6

    Weaselboy

    Joined:
    Jan 23, 2005
    #4
    Lion worked well for me, and there have been updates so it is fairly mature. You can still get it by calling Apple at 1800MYAPPLE and they will email you a code to DL it from the App Store. You will need Snow Leopard though to use the App Store. You can also still get that from Apple at the same number.
     

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