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  1. #1


    Member Since
    Aug 25, 2011
    Posts
    40
    time machine not backing up my two MacBooks
    I had my time machine set up to backup my pmacbook pro retina and a new macbook air.The set up was by done by a genius senior tech with 9 years experience. It backs up my retina but when i go to backup my air which has almost identical contents it wants to and does ech time create a new vback up. my i terabyte time machine quickly is full. What am i doing wrong?

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    48,779
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    Are you attempting to backup both machines to the same external hard drive?

  3. #3

    pigoo3's Avatar
    Member Since
    May 20, 2008
    Location
    U.S.
    Posts
    35,072
    Specs:
    2011 13" MBP 2.3ghz, 8gig ram, OS 10.8.5
    The set up was by done by a genius senior tech with 9 years experience.
    I had to chuckle at this! Not only was the person a "Genius"…they were a genius with "9 years of experience".

    So obviously…there is a level above genius! Maybe "Super Genius"! Or maybe "Super Genius" requires at least 10 years of experience!lol

    I wonder what title someone gets with 30 years of experience??

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  4. #4


    Member Since
    Oct 16, 2010
    Location
    Brentwood Bay, BC, Canada
    Posts
    4,036
    Also chuckling here and maybe the OP should forget using the "genius" help and just start over on their own, and maybe also make sure that both Macs aren't both named "Macintosh HD".

  5. #5


    Member Since
    Aug 25, 2011
    Posts
    40
    yes. I was told that both macs could be backed up to the same time machine. But can anyone say yes or no with the reasons not just an exclamation mark please.
    i did have this performed in the past on one macbook pro and the backup able to restore.Of course i have virtually the same information and applications on both machines in different location.
    i supooose if one disk crashed and i could use the other mac to restore. Or could i . at 85 years of age this puzzles me.

  6. #6


    Member Since
    Oct 16, 2010
    Location
    Brentwood Bay, BC, Canada
    Posts
    4,036
    Quote Originally Posted by britrecko View Post
    yes. I was told that both macs could be backed up to the same time machine. But can anyone say yes or no with the reasons not just an exclamation mark please.
    i did have this performed in the past on one macbook pro and the backup able to restore.Of course i have virtually the same information and applications on both machines in different location.
    i supooose if one disk crashed and i could use the other mac to restore. Or could i . at 85 years of age this puzzles me.
    Yes you can, but I sure wouldn't advise it and neither would several others. But it also depends on your setup and what equipment you have for your use.

    Do a Google search on 'use time machine to backup multiple macs' :
    https://www.google.ca/search?client=...CKWV8QeStIHQCA

    If you're just going to use a single backup drive for the two Macs, I'd suggest just partition the external into two partitions so that each Mac has it's own partition.

    For some good info on TM, checkout this site that used to be updated with good info:
    Apple* OSX* and* Time* Machine* Tips

    PS: May I suggest you also use CCC and create a cloned bootable backup!!

  7. #7


    Member Since
    Aug 25, 2011
    Posts
    40
    backing up 2 macs to one time machine
    Thank you for the excellent information. I will do as advised.

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