iMac won't boot with external drives attached

Discussion in 'iMac' started by oli.watts, Mar 27, 2011.

  1. oli.watts macrumors member

    Joined:
    Sep 17, 2003
    Location:
    UK
    #1
    Hi,

    Facing an odd problem...

    I've got two external HD attached via USB to my iMac (the most recent, Aluminum version) which is running 10.6.6.

    If I restart the machine with the drives attached the system hangs at the first all-white screen, and doesn't even display the Apple logo.

    Remove the drives means the system boots fine.

    Any thoughts on fixes?

    Cheers,

    Oli
     
  2. DewGuy1999 macrumors 68040

    DewGuy1999

    Joined:
    Jan 25, 2009
    #3
    Make sure your iMac's internal hard drive is selected at the Startup Disk in System Preferences.
     

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