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  1. #1

    Member Since
    Dec 03, 2007
    External HD Issues
    Hi guys, wonder if someone can help...

    I have recently bought a new external HD, a Toshiba Stor.E Canvio 3TB to be precise. It say on the box that it is compatible with Mac OSX Tiger through Lion, although needs reformatting for Mac useage. I have plugged the HD in, gone through Disk Utility > Erase in Mac OSX Extended (Journaled). I have then tried to partition it into 3 equal partitions, and get the following message:

    "Partition failed with the error:

    Invalid argument"

    I have tried erasing the disk again, and get the same "Invalid arguement" error. I have also tried clicking on the Verify button, but this appears to do nothing, and throws up no messages at all.

    I am somewhat at a loss as to what to do next, so any help/advice would be very useful. Have I done something wrong, or have I been unlucky and got a faulty HD?

    Thanks in advance,

    You can sleep in a car, but you can't race a house...

  2. #2

    Member Since
    Dec 03, 2007
    I should probably mention that I am a little behind the times, and am running OSX 10.5.8. Don't know if this would affect anything or not.

    You can sleep in a car, but you can't race a house...

  3. #3

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Keller, Texas
    2017 27" iMac, 10.5" iPad Pro, iPhone 6s+, iPhone 7+, Numerous iPods, High Sierra
    Without screen shots of exactly what you're doing, it's difficult to predict why the invalid argument error is showing up. I don't believe there is a limit to Leopard (10.5.8) being able to do the partitioning if it can see the entire drive as 3 TB.

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