Formatting USB drive - FAT32 allocation unit size

Discussion in 'macOS' started by deep diver, Apr 29, 2012.

  1. deep diver macrumors 65816

    deep diver

    Jan 17, 2008
    Solon, OH
    I have a 64GB Corsair Flash Voyager GT thumb drive (USB 3.0, compatible with USB 2.0). I need to format it in FAT32 as a single partition. The allocation unit size must be 4Kb. I know how to format to FAT32 but Leopard (OSX 10.5.8) does not have an option for choosing the allocation unit size. Is there a utility that will allow me to do this?
  2. Quad5Ny macrumors 6502a


    Sep 13, 2009
    New York, USA
    I'd have to check later (I'm about to go to bed) but from what I remember, you can't do 4k clusters with FAT32 once your over 8GB.

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