Used disk space mismatch with / folder size

Asked by vkshah2 on 2014-09-11

I have a ~42GB Disc partition on which I have installed Ubuntu 14.04 LTS.

My /folder size is showing ~8.7 GB
However the used space is showing full ! The graphics launcher was not loading, so I cleared a 5GB file. After that the used space is showing up as 40.2 GB.

Ubuntu showed me a system error and asked me to report it, which I have done. But still can't figure out where all my space disappeared...

Screenshot here at http://imgur.com/QN2yKDT

Question information

Language:
English Edit question
Status:
Solved
For:
Ubuntu util-linux Edit question
Assignee:
No assignee Edit question
Solved by:
vkshah2
Solved:
2014-09-15
Last query:
2014-09-15
Last reply:
2014-09-14

What is the output of:

df -h; lsb_release -a; uname -a; df -i

Thanks

If output is text, you don't need an image. Just copy and paste the text as an update.

You can see from your output that you have 6Gb available on /

Is this the issue?

vkshah2 (vkshah2) said : #4

Yes, that is the issue. I am not sure when this happened. Noticed it when I was trying to set up a virtual machine on VirtualBox. Ubuntu got hanged and I wasn't able to get the launcher until I made some space my moving a 5GB file to another folder. My original ubuntu terminal is not showing up, instead I am getting an XTerm terminal which isn't allowing me to copy text directly.

vkshah2 (vkshah2) said : #5

another partition*(not folder).

if you suspect the space is being taken up by $HOME you can run:

ls -A | while read x; do du -s "$x"; done | sort -nr

You can then see where your space is being used and cleanup

vkshah2 (vkshah2) said : #7

I have checked the total space of $HOME, it is around 6GB.
According to the ds the space free is only 6GB. Based on which my disk size= 6+6 = 12GB. But my disk partition is 42GB.

Command output of as per your command for $home and root at http://imgur.com/SsMxAOU. The media folder is showing the space of another partition. My Xterm doesn't copy so posting an image.

Manfred Hampl (m-hampl) said : #8

What is the output of

sudo du -hs --exclude=/dev --exclude=/proc --exclude=/sys /*

vkshah2 (vkshah2) said : #9

There is 30G in the /root folder, but I can't access it :/

9.7M /bin
62M /boot
4.0K /cdrom
14M /etc
5.2G /home
0 /initrd.img
0 /initrd.img.old
492M /lib
3.5M /lib32
4.0K /lib64
16K /lost+found
223G /media
4.0K /mnt
248M /opt
30G /root
1.4M /run
12M /sbin
4.0K /srv
1.8M /tmp
4.1G /usr
619M /var
0 /vmlinuz
0 /vmlinuz.old

if you run:

sudo -i
cd
du -sh *

what is output?

Why are you saving things to /root anyway???

Manfred Hampl (m-hampl) said : #11

What is the output of

sudo ls -l /root
sudo du -hs /root/*

vkshah2 (vkshah2) said : #12

Hi, the root folder had Virtual Box VM folder inside it. I was trying to setup a prebuilt Oracle machine and had used sudo to start it.
Space is freed after I deleted those folders after changing file permissions.
:)