One-time Time Machine backup to used drive

Discussion in 'Mac Basics and Help' started by Mightee, Mar 8, 2012.

  1. Mightee macrumors member

    Joined:
    Feb 25, 2004
    #1
    I want to make a one-time Time Machine backup of my girlfriend's computer. She has about 800GB of data on her drive, and 1TB free on a 2TB external. Can I safely use that remaining space on the external drive for a backup WITHOUT partitioning it? Will Time Machine keep the files that are already present intact?
     
  2. mfram macrumors 65816

    Joined:
    Jan 23, 2010
    Location:
    San Diego, CA USA
    #2
    Yes, TM will leave the existing files alone. However, the disk must be formatted to HFS+ (with journaling) in order for TM to use it. If the drive isn't formatted HFS+, TM won't touch it.
     

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