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  1. #1


    Member Since
    Nov 16, 2014
    Posts
    19
    Problem with Partial Download of OS 10.12.2
    I have an iMac which was running Sierra (10.12). I clicked to upgrade the system to 10.12.2 and at the same time a new version of iTunes.
    I changed my mind about iTunes and clicked to stop the download. I finally had to restart the computer and download 10.12.2 separately (it no longer showed as an available update).
    The system has run very slow ever since. No further updates are listed, but I want to move to 10.12.4. However, when checking I see that the current "system" is taking up 355gB. So it appears that I have
    a partial download in there. Is there any way out of this without wiping the computer and doing a clean install? I forgot to do a backup when 10.12 was working.
    Thanks

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Keller, Texas
    Posts
    51,757
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 7+, 3 iPods, Sierra
    Never a good idea to stop a download when upgrading OS X as that can cause problems and leave your machine in an unstable state. We suggest downloading the combined update of Sierra which will overwrite any previous installation and return your disk space. It's likely the remnants of the stopped download are in your Applications folder taking up space.

    And.. why did you not want the iTunes update? It was a minor update that changed some things about sharing and in no way impacted on playlists, music, etc.

    OS X Sierra Combined update download

    And this time, make a backup before proceeding.

  3. #3


    Member Since
    Nov 16, 2014
    Posts
    19
    OK, I will try that, thanks.
    I am aware of what you say, and normally follow, but I was in a hurry at the time as was using a friend's connection and wanted to limit downloads.
    As for why no backup I have no excuse...just very busy. Am doing backups

  4. #4


    Member Since
    Nov 16, 2014
    Posts
    19
    I did as you suggested. However the OS now takes up 356.77gb, so I obviously still have an issue there
    Any further suggestions?
    Thanks

  5. #5

    MacInWin's Avatar
    Member Since
    Jul 07, 2008
    Location
    Winchester, VA
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    7,375
    Specs:
    2015 rMBP, 2008 iMac, iPhone 7, iPad mini, 13" MBP, AppleTV and two MacMinis
    Have you rebooted?

    You can also try running Onyx and let it clean out the cache, if the reboot doesn't do that for you. There is no way for the download to be that big, it was only about 6Gb overall. So something else is consuming your space and calling itself "system" space. The most likely candidate is cache.

  6. #6

    ferrarr's Avatar
    Member Since
    May 21, 2012
    Location
    Pawtucket, RI, USA
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    2,732
    Specs:
    L2014 Mac mini macOS 10.12, iPhone 6 iOS 10, iPad Pro 1 12.9" iOS 10,  Pencil 1
    I believe sathya is referring to the "About This Mac" > Storage.
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  7. #7


    Member Since
    Nov 16, 2014
    Posts
    19
    Yes that is correct. About this Mac Storage is 356gb

  8. #8

    MacInWin's Avatar
    Member Since
    Jul 07, 2008
    Location
    Winchester, VA
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    7,375
    Specs:
    2015 rMBP, 2008 iMac, iPhone 7, iPad mini, 13" MBP, AppleTV and two MacMinis
    So if sathya reboots, that area will be purged and should get much smaller. That is partly cache and scratch space.

    Also, that display of usage of the drive is notoriously inaccurate, so there is no way of knowing what the REAL number is.

  9. #9


    Member Since
    Nov 16, 2014
    Posts
    19
    Yes there were several reboots. While the computer seems to operate OK, the start up and shut down times are excessive (start up is about 3-5 minutes for everything to settle). I can live with everything except the
    loss of HD space. System is occupying 350gb. I believe the issue is an incomplete upgrade from 10.12 to 10.12.2. It is looking more like I may have to revert to 10.7.5 and then go to 10.12, or do a clean install of 10.12.4
    Thanks

  10. #10

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    23,728
    Specs:
    iMac, i7 4GHz, 32GB memory, 1TB Flash Storage, OS X.12.4.
    Backup everything and do a clean install of OS X.12 and then update to OS X.12.4. If you did not burn Sierra to an +8GB thumb drive, download it again, use XDiskmakerX to burn to thumb drive, boot from that, go t oUtilities and erase the hard drive, and then run the Installer. When the Installer runs it erases itself from the Applications Folder where it appears under Installer.


    http://diskmakerx.com
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  11. #11


    Member Since
    Nov 16, 2014
    Posts
    19
    I cannot find a place to download OS 10.12. All I can find is 10.12.4

  12. #12

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    23,728
    Specs:
    iMac, i7 4GHz, 32GB memory, 1TB Flash Storage, OS X.12.4.
    Go into the App Store under the Apple icon. make sure you are not looking at an update via a search engine.
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

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