Used disk space mismatch with actual data

Discussion in 'macOS' started by naserke, Dec 19, 2010.

  1. naserke macrumors newbie

    Joined:
    May 15, 2010
    #1
    I have Macbook with Mac OS X 10.6.4. I have 500 gb internal hard drive. I only have 297 gb data in my documents but finder shows that my harddive has 472gb of data and only 28 gb left.
    I don't understand this mismatch and I am running out of disk space.

    Need help on what all extra disk space is being used for and how to fix it.
     
  2. Hal Itosis macrumors 6502a

    Hal Itosis

    Joined:
    Feb 20, 2010
    #2
    Some frequently recommended GUI utilities:

    But using Terminal is usually better (IMO), both in terms of accuracy... and in terms of communicating results in a forum:
    1. Unmount and disconnect all external drives (Flash/USB, FireWire, etc).

    2. Unmount all networked shares, and unplug Ethernet (and/or turn off AirPort).

    3. Now... copy/paste this into Terminal:

      sudo du -hd1 /

      and hit return. Supply an admin password (which will not echo to screen).
      Let the command run to completion (might take around 5 minutes).

    4. Copy/paste the results here.

    5. Also run this command and post results:

      df -h
     
  3. Saturdays macrumors member

    Saturdays

    Joined:
    Nov 18, 2010
    Location:
    Somewhere in USA
    #3
    You checked only your Documents folder? or did you check any other folders as well?

    Like Downloads, Movies, Music, Library etc..

    Try checking your entire Home folder or go into root and check Applications,Library,System,Users (highlight and press Command+Option+i)

    Also try repairing disk and erasing free space

    And do what the above reply said as well, just in case.
     
  4. naserke thread starter macrumors newbie

    Joined:
    May 15, 2010
    #4
    I will try these commands and get back to you.

    @ Saturdays.. I looked at home folder which includes all movies, photos, downloads etc.
     
  5. naserke thread starter macrumors newbie

    Joined:
    May 15, 2010
    #5
    Here is the output from 2 commands.. thanks

    sudo du -hd1 /

    228K /.fseventsd
    102M /.Spotlight-V100
    0B /.Trashes
    6.0G /Applications
    3.9M /bin
    0B /cores
    du: Can't follow symlink cycle from /dev/fd/3 to /dev/fd/3


    df -h

    Filesystem Size Used Avail Capacity Mounted on
    /dev/disk0s2 465Gi 436Gi 29Gi 94% /
    devfs 108Ki 108Ki 0Bi 100% /dev
    map -hosts 0Bi 0Bi 0Bi 100% /net
    map auto_home 0Bi 0Bi 0Bi 100% /home
     
  6. naserke thread starter macrumors newbie

    Joined:
    May 15, 2010
    #6
    I downloaded 3 utilities you mentioned and ran each one.

    Grand Perspective
    Volume size 465GB
    Scanned files 296 GB
    Miscellaneous used space 140 GB
    Initial free space 28.6 GB


    Omnidisksweeper
    HD 294.9 GB
    User 274.5 GB
    Library 6.5 GB
    Application 6.0GB
    Private 5 GB
    System 2.3 GB
    usr 479 MB
    Spotlight 103 MB

    JDiskReport
    Total 292.3 GB
    Users 274.1 GB

    GrandPerspective results says that "Miscellaneous used space 140 GB".

    What is Miscellaneous Used space????
     
  7. Hal Itosis, Dec 23, 2010
    Last edited: Dec 23, 2010

    Hal Itosis macrumors 6502a

    Hal Itosis

    Joined:
    Feb 20, 2010
    #7
    Yep, there's your (less than) 30 gigs of free space.



    Hmm, strange... du used to behave better than that (but i'm seeing the same deal here on 10.6 now).

    Okay, then run this one instead:

    sudo du -hxd1 /

    Unfortunately, that'll also skip over the /Volumes folder... which is often a place where disk space gets eaten by improperly dismounted volumes. So we (might) need to check that separately.

    This is one way to quickly test that from Terminal:

    ls -lkia /Volumes

    [nevermind the previous edit]
     
  8. naserke thread starter macrumors newbie

    Joined:
    May 15, 2010
    #8
    sudo du -hxd1 /

    236K /.fseventsd
    104M /.Spotlight-V100
    0B /.Trashes
    6.0G /Applications
    3.9M /bin
    0B /cores
    4.5K /dev
    1.0K /home
    6.5G /Library
    1.0K /net
    0B /Network
    5.1G /private
    2.6M /sbin
    2.3G /System
    268G /Users
    473M /usr
    141G /Volumes
    429G /


    ls -lkia /Volumes

    total 12
    830477 drwxrwxrwt@ 5 root admin 170 Dec 24 00:08 .
    2 drwxrwxr-t 30 root admin 1088 Jul 15 03:19 ..
    2310957 -rw-r--r--@ 1 _spotlight admin 6148 Nov 29 22:41 .DS_Store
    2355588 lrwxr-xr-x 1 root admin 1 Dec 12 15:33 Macintosh HD -> /
    1041154 d--x--x--x+ 16 root admin 544 Sep 5 00:55 System Backup

    Thanks...
     
  9. Hal Itosis, Dec 24, 2010
    Last edited: Dec 24, 2010

    Hal Itosis macrumors 6502a

    Hal Itosis

    Joined:
    Feb 20, 2010
    #9
    Looks to me like there's a bungled backup in /Volumes
    [as seen from Terminal, any "directory" inside /Volumes should have an inode number = 2 (generally speaking, though there are exceptions).]

    That "System Backup" item has to go.

    You can open the /Volumes folder in Finder via the Go menu --> Go to Folder...
    and type /Volumes in the text field.

    Else, run this in Terminal:

    open /Volumes
     
  10. naserke thread starter macrumors newbie

    Joined:
    May 15, 2010
    #10
    Thanks...

    How do I delete this System backup Volume... Its not visible in Finder.
     
  11. Hal Itosis macrumors 6502a

    Hal Itosis

    Joined:
    Feb 20, 2010
    #11
    I did edit my previous post with some additional (albeit minimal) info. I thought i'd just let you decide if you wanted to look inside it for stuff to save maybe. But i see it has some fairly restrictive permissions.

    If it proves to be too difficult to delete in the GUI... and
    if you're sure there's nothing inside you need to save... then,
    this series of commands should loosen up any blockages nicely:

    sudo chflags -R nouchg /Volumes/System?Backup
    sudo chmod -R -N /Volumes/System?Backup
    sudo chmod 777 /Volumes/System?Backup

    After which this should erase the bugger:

    sudo rm -Rf /Volumes/System?Backup

    note:
    • the ? there is intentional (not a typo).
    • the less output on screen the better. (Unix commands of that nature succeed silently).

    --

    I'm not there so i can't see what's happening. There's a slight chance that —if you were to try "moving" that System Backup folder to the trash. then —it might actually make a copy instead. So perhaps my Terminal commands are the right way to go from the beginning.

    [those commands are directed at that problem folder in its current location "/Volumes/System Backup" ... so if it does go into the trash (i.e., via a successful move), then those commands won't do anything .]
     
  12. naserke thread starter macrumors newbie

    Joined:
    May 15, 2010
    #12
    Thanks for your help and quick responses.
    I would like to look into System backup volume before I delete, but could not find it in Finder window.

    Is there a way that I can look at its content through GUI before I use commands to delete it? I did not create this volume, so I don't what's inside.

    Thanks again..
     
  13. naserke thread starter macrumors newbie

    Joined:
    May 15, 2010
    #13
    oh sorry.. you have given instructions on how to open it in finder.

    Sorry.. I missed that in hurry..

    thanks
     
  14. naserke thread starter macrumors newbie

    Joined:
    May 15, 2010
    #14
    I dragged the folder to trash and it worked. I cleaned the trash and now I have 188 GB of free space.

    I really appreciate your help. Thanks.
     
  15. paretologic2010 macrumors newbie

    Joined:
    Dec 23, 2010
    #15
    thank you

    These solutions really worked. Thank you for posting them, keep them coming!

    drivercure
     
  16. romiebleed macrumors member

    Joined:
    Aug 22, 2011
    Location:
    johannesburg
    #16
    I have similar problem

    Hi Hal Itosis,

    Thanks for solving naserke's problem.

    I have similar problem with my macbook pro. It had 320 Gig hdd.

    When I tried GrandPerspective, it showed the following details

    Volume Size: 297 GB
    Size of Scanned File: 169 GB
    Miscellaneous Used Space: 97.1 GB
    Initial Free Space 30,4 GB

    When I do GetInfo on my HDD from Finder I get a free space of 30,4GB

    I tried your approach and saw 'MobileBackups' under /Volume folder

    When I moved it to Trash, it went in, but I dont see anything there and there is no option to Empty Trash :-(

    Did i screwed it up???? Am so worried now... Any help suggestions from you will be highly appreciated.

    Thank you,
    Romie
     
  17. matwue macrumors member

    Joined:
    Mar 28, 2011
    #17
    You are using Mac OS Lion on a mobile Mac, aren't you? If so, you should have a look at this thread here and disable the local time machine backups - which you deleted manually, as it seems. But that shouldn't cause any problems, so no worries.
     
  18. romiebleed macrumors member

    Joined:
    Aug 22, 2011
    Location:
    johannesburg
    #18
    Thanks matwe

    I tried the backup disabling command and got the following output... Is that correct?

    Leahs-Mac:~ kamalrajdhanapal$ sudo tmutil disablelocal
    sudo: tmutil: command not found
    Leahs-Mac:~ kamalrajdhanapal$


    Thanks for your assistance...

    Thanks,
    Romie
     
  19. matwue macrumors member

    Joined:
    Mar 28, 2011
    #19
    No, this means it didn't work. Which version of OS X are you using? It only works on mobile Macs with OS X Lion, not on Tiger or Snow Leopard.
     
  20. romiebleed macrumors member

    Joined:
    Aug 22, 2011
    Location:
    johannesburg
    #20
    I'm using Mac Osx Lion Version 10.7 (Build 11 A390)..
    Thanks for your reply.
     

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