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

ashallcross

macrumors newbie
Original poster
May 27, 2015
3
0
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)



Anyone have any idea why this might be?

Cheers

Adam
 

Weaselboy

Moderator
Staff member
Jan 23, 2005
30,171
9,840
California
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
 
Comment

PhiLLoW

macrumors 6502
May 31, 2014
324
184
Experienced something similiar nearly a year ago. On my Mac it was an icloud bug. Deactivating icloud drive + restart solved the problem.
 
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ashallcross

macrumors newbie
Original poster
May 27, 2015
3
0
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
 
Comment

Weaselboy

Moderator
Staff member
Jan 23, 2005
30,171
9,840
California
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?
 
Comment

ashallcross

macrumors newbie
Original poster
May 27, 2015
3
0
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
 
Comment

Weaselboy

Moderator
Staff member
Jan 23, 2005
30,171
9,840
California
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
Oh you would know. It is Apple's programming environment used to develop applications.
 
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