External hard drive not working in SL

Discussion in 'MacBook' started by dethklok7, Aug 29, 2009.

  1. dethklok7 macrumors member

    Jul 12, 2008
    I just upgraded to snow leopard and when I try to plug in my external hard drive I get a prompt saying "the disk inserted was not readable by this computer." It was working before when I was running leopard.
  2. NewMacbookPlz macrumors 68040


    Sep 28, 2008
    What kind of drive?

    Have you checked on the manufacturer website for any support announcements in relation to SL compatibility?
  3. dethklok7 thread starter macrumors member

    Jul 12, 2008
    its a western digital drive. it wasn't left formatted to fat 32. It was formatted for mac osx

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