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time machine bug (amount to back up grows)

304 Views 9 Replies Latest reply: Jun 2, 2013 1:32 PM by drdocument RSS
jhm1234 Calculating status...
Currently Being Moderated
May 31, 2013 3:46 PM

When I started my backup, the amount to be backed was indicated as 25GB.  Everything was fine until the progress reached approx. 22GB.  Then the amount to back up started growing.  I killed the backup after it reached 48GB.  I've observed this behavior with 2 separate hard drives (different brands and interfaces (USB 2.0, FW800) too boot).


MacBookPro 2.6 Intel Core i7, 8GB, v10.8.3

  • Linc Davis Level 10 Level 10 (107,985 points)
    Currently Being Moderated
    May 31, 2013 6:17 PM (in response to jhm1234)

    If you have more than one user account, these instructions must be carried out as an administrator.

    Launch the Console application in any of the following ways:

    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)

    ☞ In the Finder, select Go Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.

    ☞ Open LaunchPad. Click Utilities, then Console in the icon grid.

    Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select

    View Show Log List

    from the menu bar.


    Enter the word "Starting" (without the quotes) in the String Matching text field. You should now see log messages with the words "Starting * backup," where * represents any of the words "automatic," "manual," or "standard." Note the timestamp of the last such message. Clear the text field and scroll back in the log to that time. Select the messages timestamped from then until the end of the backup, or the end of the log if that's not clear. Copy them (command-C) to the Clipboard. Paste (command-V) into a reply to this message.

    If all you see are messages that contain the word "Starting," you didn't clear the search box.

    If there are runs of repeated messages, post only one example of each. Don't post many repetitions of the same message.

    When posting a log extract, be selective. Don't post more than is requested.

    Please do not indiscriminately dump thousands of lines from the log into this discussion.


    Some personal information, such as the names of your files, may be included — anonymize before posting.

  • scherzo15 Calculating status...
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    Jun 1, 2013 4:13 AM (in response to Linc Davis)

    You gave the same suggestion to my question :

    Are Time Machine, Mountain Lion and Retina able to work together?

    I'm sorry to report that your suggestion to search 'starting'  on the console brings at most one line (instead of thousands!). Furthermore, it does not seem connected to time capsule

    See details there.

  • drdocument Level 4 Level 4 (2,995 points)
    Currently Being Moderated
    Jun 1, 2013 8:16 AM (in response to jhm1234)

    Time Machine performs a number of different operations during a backup which contribute to its estimates.


    If you are not seeing an error message or some other dialog asking you to do something, it is best to allow TM to complete its backup.


    Lots of good info here.

  • Linc Davis Level 10 Level 10 (107,985 points)
    Currently Being Moderated
    Jun 1, 2013 9:32 AM (in response to jhm1234)

    I suggest you do two things. First, if you haven't already done so, start a new backup on another external storage device. You should do that anyway, as one backup isn't enough to be safe.


    Rebuild the Spotlight index on the source volume(s) by following these instructions:


    Spotlight: How to re-index folders or volumes

  • drdocument Level 4 Level 4 (2,995 points)
    Currently Being Moderated
    Jun 1, 2013 9:43 AM (in response to jhm1234)

    Just wondering what would happen if you allow the backup to finish.

    Any error messages or alerts?

  • drdocument Level 4 Level 4 (2,995 points)
    Currently Being Moderated
    Jun 2, 2013 1:32 PM (in response to jhm1234)

    I don't use virtualization myself, but I understand it can be problematic with Time Machine.

    One option of course is to exclude the VB image and back it up manually.

    Here is another option.


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