Installing Tiger on extern harddisk

Discussion in 'MacBook Pro' started by rasmusschaal, Dec 28, 2007.

  1. rasmusschaal macrumors member

    Dec 4, 2007
    In denmark, Århus
    Hi i just bought a new harddisk. ( the 500 GB edition)
    I run leopard on the intern harddisk.

    But when i insert the Tiger install disk and choose to install on my Tiger partition on my extern harddisk it just says that this disk is not able to boot from or something.
    How can i change it so i can install tiger on it?
  2. Mal macrumors 603


    Jan 6, 2002
    First off, that's a USB drive, which, while it will be able to boot an Intel Mac, will be oppressively slow, so I don't recommend it. You're far better off with FireWire.

    Regardless, though, you'll have to format the disk as HFS+ to be able to install OS X on it. You can do that from Disk Utility either booted from your internal drive or booted from the Tiger DVD.

  3. rasmusschaal thread starter macrumors member

    Dec 4, 2007
    In denmark, Århus
    Okay then im just going to use my intern harddisk to all the systems and put all the files in the extern.
    one problem.
    In disk utility when im partiotionating my disk i can only choose in format. Mac OS (extended).

    And im both gonna have windows, linux, tiger AND a leopard partition.
    how come i cant choose unix, MS-DOS format anymore?
    i could in tiger : (

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