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  1. #1
    Macbpro Wont Erase Or Format Ext Hd ????

    Member Since
    Feb 23, 2008
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    Specs:
    MBP 2.4 DUO,8GB,G4SE 8600GT 256,leopard 10.5.8
    Macbpro Wont Erase Or Format Ext Hd ????
    Hi, new here and a pre apology if this is in the wrong section.

    Simpletech 320 ext HD, I want to be able to download anything from a PC or my new MAC Book Pro. Included directions said I would need to format the EXT HD in FAT 32 to be able to use with both OS'. THing is the mac cannot do this, or more correctly something I assume in the HD is preventing the action. I keep getting a message " cannot undock device" and another similar cannot unhook device ???? I went to format in MS-DOS/ FAT 32 and tried partiioning also. It again gave the same errors. It wont even partition. I am sure there is something I am doing wrong as usual, because the more I use this Mac the more I realize how much I was missing with the old PC. 1 month old....... takes some getting used to. ......I have read several threads on topics very similar to this but nothing that I was able to directly use in my situation.


    Thanks in advance for any info or link to lead the blind........

  2. #2
    Macbpro Wont Erase Or Format Ext Hd ????
    The Vindicat3d's Avatar
    Member Since
    Nov 05, 2007
    Posts
    985
    Specs:
    Black MacBook- 2.2GHz, 1gb RAM, 160GB, Double-Layer Superdrive.
    Try unplugging the USB cord (from both ends if possible) and giving it a nice shake (honestly, I had this same problem and that fixed the problem for me) see if you can eject the HDD before you unplug it, if not than just yank the cord.

  3. #3
    Macbpro Wont Erase Or Format Ext Hd ????

    Member Since
    Feb 22, 2008
    Posts
    72
    Specs:
    Not a mac: Windows XP, Ubunu 8:04 2GB's RAM Intel petuimu 4
    Quote Originally Posted by The Vindicat3d View Post
    see if you can eject the HDD before you unplug it, if not than just yank the cord.
    DONT YANK it won't help just undo it normally

  4. #4
    Macbpro Wont Erase Or Format Ext Hd ????
    tmorgan1689's Avatar
    Member Since
    Jun 13, 2007
    Location
    NC
    Posts
    167
    Specs:
    2.16 Blackbook 1gb/160gb
    Here if you do it this way it's the best for what you want, just format it using NTFS and then install MacFuse:

    NTFS is the modern default standard on PCs. Macs can read files off NTFS but not write to them. A Mac can - however write to NTFS drives if you install free Software called MacFuse
    Macbook 2.16/2gb/160gb
    32gb iPhone 3GS
    8gb Black iPod Nano 3rd Gen

  5. #5
    Macbpro Wont Erase Or Format Ext Hd ????
    The Vindicat3d's Avatar
    Member Since
    Nov 05, 2007
    Posts
    985
    Specs:
    Black MacBook- 2.2GHz, 1gb RAM, 160GB, Double-Layer Superdrive.
    Quote Originally Posted by tmorgan1689 View Post
    Here if you do it this way it's the best for what you want, just format it using NTFS and then install MacFuse:
    I don't think he can reformat it into any format, i had the same problem as him, it is not specific to the format.

  6. #6
    Macbpro Wont Erase Or Format Ext Hd ????
    tmorgan1689's Avatar
    Member Since
    Jun 13, 2007
    Location
    NC
    Posts
    167
    Specs:
    2.16 Blackbook 1gb/160gb
    Oh, I have no idea then, sorry
    Macbook 2.16/2gb/160gb
    32gb iPhone 3GS
    8gb Black iPod Nano 3rd Gen

  7. #7
    Macbpro Wont Erase Or Format Ext Hd ????

    Member Since
    Feb 23, 2008
    Location
    Shelby Township, Michigan
    Posts
    56
    Specs:
    MBP 2.4 DUO,8GB,G4SE 8600GT 256,leopard 10.5.8
    Thanks for the replies and quick. I am still getting a message " cannot unmount " so I am looking into other avenues to formating or just returning this cheap simpletech and getting the Seagate that did work when we tested it. Maybe no one else ran into this yet.

  8. #8
    Macbpro Wont Erase Or Format Ext Hd ????
    MacKat's Avatar
    Member Since
    Feb 20, 2008
    Location
    Charlottesville, VA
    Posts
    69
    Specs:
    Whitebook 2.2, 4gb RAM, 200gb 7200RPM HD
    It sounds like there is some pre-installed partition on the hard drive that has security settings enabled.
    If you have access to a Windoze box, clearing all partitions on it and leaving it as free space, then plug it into your Mac and see if it will partition and format that way.
    "You must be the change you wish to see in the world." -- Mohandas Karamchand Gandhi

  9. #9
    Macbpro Wont Erase Or Format Ext Hd ????
    baggss's Avatar
    Member Since
    Oct 10, 2004
    Location
    Margaritaville
    Posts
    10,310
    Specs:
    27" 3.4 Ghz i7 iMac-13" C2D Macbook-OSX 10.10.2 -64Gb iPad 2-64 Gb iPhone 6+-ATV 2-14Tb of Storage
    In Disc Utility click the "unmount" button at the top and see if you can manually unmount the drive. If so, format away. If not, MacKat is probably right.


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