[SOLVED] Where is free space?

Lexus45 · 02-03-2014, 12:43 AM

Hello friends.
Is this a filesystem error?
It seems to be not so many files on the partition. But 'df -h' shows that the partition is almost all not free.

Code:

root@hostname:~# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda2        19G  5.9G   12G  34% /
udev            996M  4.0K  996M   1% /dev
tmpfs           402M  1.1M  401M   1% /run
none            5.0M     0  5.0M   0% /run/lock
none           1004M  468K 1003M   1% /run/shm
/dev/sda3        53G   50G  225M 100% /home

Code:

root@hostname:~# du -sh /home/*
16K    /home/lost+found
324K    /home/support
du: cannot access `/home/user/.gvfs': Permission denied
50G    /home/user

Code:

root@hostname:~# du -sh /home/user/*
64K    /home/user/agent_dogovor_new.doc
8.0K    /home/user/bookmarks_28.05.13.html
72K    /home/user/filewrite
40K    /home/user/Kyocera_FS-1035MFP.ppd
0    /home/user/libpeerconnection.log
376K    /home/user/scan
4.0K    /home/user/Ubuntu One
4.0K    /home/user/Video
4.0K    /home/user/Documents
393M    /home/user/Downloads
1.5M    /home/user/Images
4.0K    /home/user/Music
183M    /home/user/Desktop

There are no many and/or big hidden files in the home directory.

The trash is empty (I checked the real path to the trash directory, not the desktop icon).

System: ubuntu 12.04.
FS: ext4.

Code:

root@hostname:~# mount
/dev/sda2 on / type ext4 (rw,errors=remount-ro)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
/dev/sda3 on /home type ext4 (rw)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
rpc_pipefs on /run/rpc_pipefs type rpc_pipefs (rw)
gvfs-fuse-daemon on /home/user/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=user)

Phoenix2275 · 02-03-2014, 12:56 AM

Recently, I discovered that my root directory (/) had no free space left, just like what has happened to you. I looked in /var to see whether there were any big files. I found three, all of 11G, which I deleted. Running df -h again showed no free space. So I rebooted and found when I had logged in again that the file system was Ok: lot's of free space again.

So I recommend that you look for files above a certain size (you choose), using `find' which can be told to find files of a particular size or more (read "info find" to find the details). Delete any suspiciously large files and then reboot.

If you still have difficulties, let us know.

Lexus45 · 02-03-2014, 01:00 AM

It's ~/.thunderbird

:-)

pan64 · 02-03-2014, 01:15 AM

I think you missed the dot-files in your home (the files beginning with a .).
du -sh /home/user/* will not take into account them.

pan64 · 02-03-2014, 01:15 AM

I think you missed the dot-files in your home (the files beginning with a .).
du -sh /home/user/* will not take into account them.

chrism01 · 02-04-2014, 04:00 AM

@Phoenix2275: deleting open files then rebooting is definitely not good for your system.
You should find out how to approach them appropriately depending on what program owned them.

Note also that you cannot do that to a Prod server ..