formatting external hard drive with two different partition schemes?

Discussion in 'macOS' started by limsilas, Nov 2, 2010.

  1. limsilas macrumors newbie

    Joined:
    Mar 21, 2007
    #1
    hi all,

    i'd like to format my lacie external hard drive with two partitions:

    1. HFS+ partition as a bootable clone of my internal drive
    2. FAT32 partition readable by any windows (and mac) machine

    i'm creating my partitions with disk utility, but i hit a snag when choosing a partition scheme...apparently i cannot choose a different scheme for each partition.

    so when i format the drive with GUID, the FAT32 partition is not even recognized by windows XP. but when i format the drive with master boot record (MBR), the HFS+ partition is not bootable...

    i achieved this on my prior external hard drive, but cannot remember how. any suggestions are greatly appreciated.
     
  2. limsilas thread starter macrumors newbie

    Joined:
    Mar 21, 2007
    #2
    anyone have any ideas? i know this is possible because i had my prior external drive setup this way, i just cannot remember how.
     
  3. mulo macrumors 68020

    mulo

    Joined:
    Aug 22, 2010
    Location:
    Behind you
  4. al2o3cr macrumors regular

    Joined:
    Oct 14, 2009
    #4
    It sounds like you're looking for a hybrid GPT setup. This looks promising:

    http://www.rodsbooks.com/gdisk/hybrid.html

    BTW, why FAT32 instead of NTFS? The NTFS-3G drivers for OSX have been solid for a while now, and pretty much any version of Windows that's not positively ancient should be able to read it - and you don't have to worry about hitting the 2 gig limit in the old FAT system.
     
  5. limsilas thread starter macrumors newbie

    Joined:
    Mar 21, 2007
    #5
    thanks for the link! although i haven't totally read through it yet, because it looks kind of complicated. i wish i can remember how i setup my old external hard drive - it was a few years ago, and it wasn't complicated at all. i wonder if disk utility in leopard somehow made this type of thing easier?

    also, i'm sticking with FAT32 so that my friends' macbooks can read the drive - none of them have NTFS (even though i do).
     

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