Why is my system folder over 200GB in size and still growing?

Discussion in 'OS X Yosemite (10.10)' started by ashallcross, May 27, 2015.

  1. ashallcross macrumors newbie

    Joined:
    May 27, 2015
    #1
    Hi

    I have a strange issue with my MBP. Spec is:-

    OSX 10.10.3 (14D136)
    MacBook Pro (13-inch, Mid 2012)
    16 GB RAM
    750 GB hard drive

    Basically I have run out of disk space...

    However, the wierd thing is that I keep deleting stuff but my space keeps disappearing again very quickly and I have no idea why.

    I have deleted or moved over 200GB worth of space over the past month, including 20GB last night and it's already down to 16GB.

    I have tried all the recommended things, downloaded all the disk checking tools etc, but can't see where is it all going...and yes I have emptied my recycle bin before you ask! :)

    However, whilst checking folder sizes I used this command:-

    sudo du -d 1 -x -c -g /

    which gave:-

    1 /.DocumentRevisions-V100
    1 /.fseventsd
    3 /.Spotlight-V100
    0 /.Trashes
    0 /.vol
    13 /Applications
    1 /bin
    0 /cores
    1 /dev
    1 /home
    19 /Library
    1 /net
    0 /Network
    11 /private
    1 /sbin
    229 /System
    408 /Users
    1 /usr
    1 /Volumes
    680 /
    680 total

    As you can see the system folder is huge - 229GB!! This has actually grown by 5GB since i deleted some stuff.

    However, if I look at the system folder via finder it says it is only 7.4GB in size (see attached screenshot)

    [​IMG]

    Anyone have any idea why this might be?

    Cheers

    Adam
     
  2. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #2
    Run this to drill down a bit into that System folder to see what's up.

    Or try OmniDiskSweeper for a GUI look at space used.

    Code:
    sudo du -d 1 -x -c -g /System
     
  3. PhiLLoW macrumors 6502

    Joined:
    May 31, 2014
    #3
    Experienced something similiar nearly a year ago. On my Mac it was an icloud bug. Deactivating icloud drive + restart solved the problem.
     
  4. ashallcross thread starter macrumors newbie

    Joined:
    May 27, 2015
    #4
    Update...

    @weaselboy thanks..

    So having drilled down I have found the following is taking up the space

    0 /System/library/caches/com.apple.bootstamps
    0 /System/library/caches/com.apple.corestorage
    252 /System/library/caches/com.apple.coresymbolicationd
    1 /System/library/caches/com.apple.CVMS
    1 /System/library/caches/com.apple.kext.caches
    252 /System/library/caches
    252 total

    But I can't get into this file as it says I don't have permissions.

    Any thoughts on what this is as you can see my computer has canibalise another 20GB since yesterday!

    Cheers
     
  5. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #5
    You can kill that by holding command-s at startup to boot to single user mode then run the command below to delete the entire cache folder. Then enter reboot to restart.

    Code:
    sudo rm -rf /System/Library/Caches/
    You will be asked for your password when you enter this command.

    But that does answer why it is happening. I found this talking about Xcode causing it. Are you using Xcode?
     
  6. ashallcross thread starter macrumors newbie

    Joined:
    May 27, 2015
    #6
    Update

    Hi @weasleboy

    Yes I saw that article as well after I had found the folder and did some digging around.

    I have no idea if I am using XCode. I am not knowingly using it...

    How would I find out if I was?

    Cheers
     
  7. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #7
    Oh you would know. It is Apple's programming environment used to develop applications.
     

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