Why Did Time Machine Delete My Old Backups?!

Discussion in 'Mac Basics and Help' started by rekhyt, Apr 2, 2011.

  1. rekhyt macrumors 65816

    Jun 20, 2008
    Part of the old MR guard.
    I recently upgraded my hard drive from the stock Hitachi 250GB to a Western Digital 320GB. I restored from Time Machine.

    I plugged in my hard drive today and left my hard drive to back up. Surprisingly, when I came back, the backups were being deleted.


    It was the same installation. Now my unrecoverable backups are gone.
  2. SandboxGeneral Moderator emeritus


    Sep 8, 2010
    Orbiting a G-type Main Sequence Star
    Anytime you restore from TM, it automatically deletes old backups and begins creating a new one. It's a design feature and it occurs when you change your OS X installation, i.e. when you put in a new HDD.
  3. Jolly Giant macrumors 6502a

    Jolly Giant

    Sep 15, 2010
    Hamburg, Germany
    there is a chance they weren't - it's not what TM does.

    maybe not. check out section E (especially E2) in this user tip.

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