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When booting from the install disc, open Disk Utility from Menu Bar and format the drive to Mac OS Extended (Journaled)
 
When booting from the install disc, open Disk Utility from Menu Bar and format the drive to Mac OS Extended (Journaled)

thanks this helped me solve the problem! but now I have a software problem where the installation of osx gets stuck at 99% when it says about a minute left for installation and simply stays there...... any more tips? Thanks
 
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