Time machine stuck on preparing backup

Discussion in 'MacBook Pro' started by sim667, Apr 29, 2015.

  1. sim667 macrumors 65816

    Dec 7, 2010
    So in an attempt to speed my machine up I downloaded onyx and cleared out the caches.

    However now my MacBook Pro is stuck on preparing backup in time machine, which I guess means I made a mess of a cache that time machine deals with..... Does anyone know how to make it re-cache/sort itself out?

    I'm on Mavericks by the way.
  2. JTToft macrumors 68040

    Apr 27, 2010
    Aarhus, Denmark
    Turn Time Machine off and back on (possibly with a reboot in between)?
  3. sim667 thread starter macrumors 65816

    Dec 7, 2010
    I will give that a go. I've also seen a comment about restarting the machine with it connected and trashing the in progress fike
  4. PW168 macrumors member

    Oct 10, 2009
    I use Time Capsule and through Time Machine in System preference the on off button is gone. How do I turn off Time Machine without the on off button?? Attached is a screen shot.
    --- Post Merged, Oct 20, 2016 ---
    How do I delete the In progress file. I just can't find it in finder.

    Attached Files:

  5. Weaselboy Moderator


    Staff Member

    Jan 23, 2005

    This will help you with the inprogress file.

    To stop the backup just click select disk there and remove the disk.

    Screen Shot 2016-10-20 at 9.51.17 AM.png
  6. jerryk macrumors 601

    Nov 3, 2011
    SF Bay Area
    Mine can get stuck if it losses connection with my NAS. I simply make a new AES connection and restart time Machine. But also, if I do a major update, change a lot of files, etc. it can take a long time (hours) to finish preparing for a backup.
  7. savagewatts macrumors regular

    Oct 21, 2014
    Vancouver, BC
    This worked for me in the same situation.
  8. jerwin macrumors 68020

    Jun 13, 2015
    Pondini is right about one thing.

    It does take very long time. But this time, it may not ever finish.

    I do believe that we need another guru to study what has changed in Sierra and make recommendations.

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