Partitioning an existing external NTFS drive without losing data?

Discussion in 'Mac Basics and Help' started by greengeorge, Feb 10, 2008.

  1. greengeorge macrumors newbie

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    Dec 17, 2006
    #1
    hi i have a lacie 250 gb external hd formatted as ntfs from my pc years, now im gonna do a leopard clean install so gotta backup my files to that drive, how can i partition it without losing the existing (100gb) data, ideally i'd like to split it into 2 partitions : one the existing ntfs, and the rest in a FAT format so i can move files between pc and mac

    i tried disk utility but it seems it wont partition it without erasing the existing data, ipartition requires a payment wich isnt an option right now

    help please?
     
  2. overanalyzer macrumors 6502a

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    #2
    Disk Utility can only resize HFS+ partitions dynamically without data destruction, plus NTFS is read-only in OS X (unless you use a third-party tool, but I hear they're not great). You can use Partition Magic in Windows to resize the NTFS partition to be able to make the second partition on the drive, or you can copy the data off, repartition the drive, and then copy the data back on.
     
  3. McGiord, Feb 10, 2008
    Last edited: Jan 30, 2011

    McGiord macrumors 601

    McGiord

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    #3
    Disk utily actually doesn't erase the data, but creates a new volume index/partition table, however the way to access the data is with 3rd party apps.
    Drive Savers is the only 3rd party drive recovery service that will not void apple warranty:
    www.drivesavers.com

    I think that for what you want to do, you may need to copy your current data to another HDD or media, format the HDD you want to use and the copy them back.
    ________
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  4. overanalyzer macrumors 6502a

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    #4
    Drive Savers will cost money too like iPartition. Plus you don't need data recovery since the data is perfectly fine and accessible....

    And Apple's warranty doesn't apply to your Lacie drive.
     
  5. Neil321 macrumors 68040

    Neil321

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    #5
    I think the term erase in disk utility is misleading as it should say format
     
  6. greengeorge thread starter macrumors newbie

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    Dec 17, 2006
    #6
    can windows dynamically resize an nTFS drive without 3rd party programs?

    i dont have any moer HDDs :eek:

    are you saying that disk utility on tiger wont destroy my data? :confused:

    thx for the replies everyone
     
  7. McGiord, Feb 10, 2008
    Last edited: Jan 30, 2011

    McGiord macrumors 601

    McGiord

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    #7
    What I'm saying is that when you re-format a disk the data isn't erased, but you can't access it via Finder.
    Avoid re-formatting unless you are sure where is your data and how to access it.
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  8. overanalyzer macrumors 6502a

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    #8
    No, you'll need a third-party tool.

    You might have to borrow one or use one on another computer....

    No, Tiger can't resize partitions dynamically at all. Leopard can resize HFS+.

    Right, I just meant he hasn't reformatted the drive so recovery isn't needed. And if you reformat a drive (or erase data) and start writing to it, recovery becomes far more difficult and expensive.
     
  9. greengeorge thread starter macrumors newbie

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    Dec 17, 2006
    #9
    i see, by any means i would like to completely avoid reformatting, my goal is only repartitioning, but i guess its not as easy as i thought it would be

    if i repartition the drive in windows what should i use?
     
  10. greengeorge thread starter macrumors newbie

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    Dec 17, 2006
    #10
    oh well so much for hoping i could do this tonight and without leaving my room :D
     
  11. overanalyzer macrumors 6502a

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    #11
    I've had good luck with Partition Magic, but it's not free (though there might be a free trial...not sure).

    Well you can if you have a Windows box too and you download a repartitioning tool for it online....
     
  12. McGiord, Feb 10, 2008
    Last edited: Jan 30, 2011

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