Ubuntu: wrong disk usage report on / [duplicate]


Possible Duplicate:
What is taking up so much space on my disk, beside the filesystem?

I asked this on stackoverflow, but maybe here is a better place.

On my ubuntu 11.10, /dev/sda3 (150GB) is mounted on / and /dev/sda1 (80GB) is mounted on /home. My entire disk has 250GB and the system is reporting I am running out of disk space. Here is the output of df -h:

Filesystem            Size  Used Avail Use% Mounted on  /dev/sda3             149G  141G     0 100% /  udev                  3.9G  4.0K  3.9G   1% /dev  tmpfs                 1.6G  860K  1.6G   1% /run  none                  5.0M     0  5.0M   0% /run/lock  none                  3.9G  508K  3.9G   1% /run/shm  /dev/sda1              74G   15G   56G  21% /home  

Ubuntu disk usage analyzer report the same thing. But this is weird because I believe I never used that much space on /. I also check every individual directory under / ( exclude /home ), and they don't use that much space:

8.8M    bin  4.0K    dev  0   initrd.img  0   initrd.img.old  828M    lib  15M lib32  4.0K    lib64  4.0K    media  0   proc  9.2M    sbin  0   sys  1.1G    var  108M    boot  18M etc  4.0K    mnt  40K root  4.0K    selinux  72K tmp  0   vmlinuz  0   vmlinuz.old  16K lost+found  133M    opt  1004K   run  4.0K    srv  5.9G    usr        

Any one could give me some idea what is using up the space? Thanks in advance.

one thing to add is that I turned the ufw log to full, then I noticed some extreme large log files. But I deleted the log files and turned the ufw log to low again. not sure if that's the problem.


ls -sh does not report sizes as you'd expect. It does not look inside the directories, and just reports then at some fixed size (usually, 4,0k)

There are many tools to check what is taking space on your disk. I'd recommend gdmap. It will show you a self-explanatory map of your disk

To install:

sudo apt-get install gdmap

to run, use

sudo gdmap -f / , if you want to check the whole disk

sudo gdmap -f /some/folder, to check some specific folder


Instead of installing an additional tool on your computer, you can use the built-in and decent "Disk Usage" (baobab is its executable).

Note:If u also have question or solution just comment us below or mail us on toontricks1994@gmail.com
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