Sierra gives more HDD space?

Discussion in 'macOS Sierra (10.12)' started by Freida, Jul 8, 2016.

  1. Freida macrumors 65816

    Joined:
    Oct 22, 2010
    #1
    So I get persuaded to install the beta and before the update I had 18GB free space.
    After the update I have 54GB.

    Do you know where the system took so much free space, please? I'm little bit worried that it deleted something (I do have a back up but don't wanna restore unless its confirmed)
    Would you know how this could happen, please?
     
  2. arggg14 macrumors 6502a

    Joined:
    Dec 30, 2014
    #2
    Nothing was deleted. The new OS install cleaned out junk left behind.
     
  3. Freida thread starter macrumors 65816

    Joined:
    Oct 22, 2010
    #3
    30GB though? Thats insane :)
    So how much space did others get?
     
  4. Icaras macrumors 603

    Icaras

    Joined:
    Mar 18, 2008
    Location:
    California, United States
    #4
    Yea that's around the same amount of space I claimed back as well. Had around 35 gigs left and came back after the Sierra install with over 70GB free. It's definitely started me off with a positive look on Sierra so far :)
     
  5. grahamperrin macrumors 601

    grahamperrin

    Joined:
    Jun 8, 2007
    #5
    Maybe some of that non-free space was taken by swap files.
     
  6. redheeler macrumors 603

    redheeler

    Joined:
    Oct 17, 2014
    #6
    A similar occurrence happened on my rMBP after installing Sierra beta 1, the amount of free space had tripled to over 40 GB. It's hard to believe that much space was taken up by swap and cache files.
     
  7. twanj macrumors member

    twanj

    Joined:
    Sep 10, 2015
    #7
    I went from about 20 GB free to 40 GB free. I also noticed Garageband was taking up 2 GB so I was able to delete that too.
     
  8. Gjwilly macrumors 68030

    Joined:
    May 1, 2011
    Location:
    SF Bay Area
  9. Freida thread starter macrumors 65816

    Joined:
    Oct 22, 2010
    #9
    Interesting. I wonder what all that free space was. It couldn't be that cluttered, don't you think?
     
  10. grahamperrin macrumors 601

    grahamperrin

    Joined:
    Jun 8, 2007
    #10
    Lion above, relatively large Sierra below (I don't have any other installers handy):

    Lion, Sierra.png

    11.2 GiB uncompressed in that view of the installer.

    Without inviestigating futher, a lazy guess: AppleFSCompression is more aggressive and/or more widespread than it is in El Capitan.
     
  11. grahamperrin, Jul 9, 2016
    Last edited: Jul 9, 2016

    grahamperrin macrumors 601

    grahamperrin

    Joined:
    Jun 8, 2007
    #11
    Disk spaces used by /System

    A Mavericks example :

    Code:
    Mashemite:~ grahamperrin$ date ; sudo du -hs /Volumes/10.9.5/System
    Sat  9 Jul 2016 19:28:25 BST
    Password:
    6.3G   /Volumes/10.9.5/System
    Mashemite:~ grahamperrin$ sudo find /Volumes/10.9.5/System -type f | wc -l
    Password:
      229771
    Mashemite:~ grahamperrin$
    A Sierra example:

    Code:
    Mashemite:~ grahamperrin$ date ; sw_vers
    Sat  9 Jul 2016 19:27:23 BST
    ProductName:   Mac OS X
    ProductVersion:   10.12
    BuildVersion:   16A239m
    Mashemite:~ grahamperrin$ sudo du -hs /System
    Password:
    4.9G   /System
    Mashemite:~ grahamperrin$ sudo find /System -type f | wc -l
    Password:
      228989
    Mashemite:~ grahamperrin$
     
  12. adonis3k macrumors 6502

    Joined:
    Apr 15, 2012
    #12
    I had around 30GB free on Mav and now have 107GB Free!
     
  13. flowrider, Jul 9, 2016
    Last edited: Jul 10, 2016

    flowrider macrumors 601

    flowrider

    Joined:
    Nov 23, 2012
    #13
    I have multiple drives. Two of my SSDs (same capacity) with essentially the same information except one is my El Cap BackUp, it contains 31GB less free space then my Sierra boot SSD.

    Lou
     
  14. smartalic34 macrumors 6502a

    smartalic34

    Joined:
    May 16, 2006
    Location:
    USA
    #14
    I actually lost space, going from 89GB to 75GB free...
     

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