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  1. #1
    Help with reformatting external HD for Time Machine use

    Member Since
    Jan 19, 2010
    Posts
    15
    Help with reformatting external HD for Time Machine use
    I have a 500GB external hard drive that is currently in the FAT32 format and has data. I have backed up all the data to another hard drive, and now want to reformat this drive for exclusive use as the Time Machine backup.

    I have already received instructions on how to properly pre-format a drive for TM use, which is:

    1. Open Disk Utility
    2. Select the new hard drive
    3. Go to the Partition tab
    4. Choose the number of volumes (normally one) from the Volume Scheme dropdown
    5. Click on the Options… button
    6. Choose GUID Partition Table or Apple Partition Map depending on whether your Mac is Intel-based or PowerPC-based.
    7. Click Apply.

    Now here come the questions. When I go to Disk Utility, and go to "Volume Scheme", it automatically says "Current". When I go to "1 Partition", I get selections under Volume Information with selections for the format.

    1. Which format should I choose?
    2.Are there any options I should choose?
    3. Should I then hit "Apply" and will that then erase the current info and reformat to the selected information?

    I would like to get the HD to that point where I can then go right to TM and begin that process. Many thanks for your help and guidance.

  2. #2
    Help with reformatting external HD for Time Machine use
    Slydude's Avatar
    Member Since
    Nov 15, 2009
    Location
    North Louisiana, USA
    Posts
    8,553
    Specs:
    2.8 GHz MacBook Pro 10.10.2, 8 GB mem, iPhone 6+
    Any drive that you want to use for Time Machine must be formatted as HFS+ with journaling enabled. You might find the following article interesting. It gives some background about Time machine as well as some tips for setting up the initial backup ATPM 15.03 - How To: Time Travel: Introduction to Time Machine
    Sylvester Roque Former Contributing Editor About This Particular Macintosh

    "Got Time to breathe. You got time for music." Denver Pyle as Briscoe Darling

  3. #3
    Help with reformatting external HD for Time Machine use

    Member Since
    Jan 19, 2010
    Posts
    15
    Then taking that first bit of information, the format selections I have under Partition include "MAC OS Extended (Journaled)". Is this then the proper one?

  4. #4
    Help with reformatting external HD for Time Machine use
    Slydude's Avatar
    Member Since
    Nov 15, 2009
    Location
    North Louisiana, USA
    Posts
    8,553
    Specs:
    2.8 GHz MacBook Pro 10.10.2, 8 GB mem, iPhone 6+
    That should work fine.
    Sylvester Roque Former Contributing Editor About This Particular Macintosh

    "Got Time to breathe. You got time for music." Denver Pyle as Briscoe Darling

  5. #5
    Help with reformatting external HD for Time Machine use

    Member Since
    Jan 19, 2010
    Posts
    15
    Thanks for your time and patience!

  6. #6
    Help with reformatting external HD for Time Machine use
    Slydude's Avatar
    Member Since
    Nov 15, 2009
    Location
    North Louisiana, USA
    Posts
    8,553
    Specs:
    2.8 GHz MacBook Pro 10.10.2, 8 GB mem, iPhone 6+
    You're Welcome. Hope you find the info helpful.
    Sylvester Roque Former Contributing Editor About This Particular Macintosh

    "Got Time to breathe. You got time for music." Denver Pyle as Briscoe Darling

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