I want to install a program but it says that there is not enough free disk space more than 11 GB although there is.

df -h shows:

Filesystem            Size  Used Avail Use% Mounted on
                       50G   39G   11G  79% /
tmpfs                 942M  540K  942M   1% /dev/shm
/dev/sda1             485M   55M  406M  12% /boot
                      176G   27G  141G  17% /home

df -i shows:

Filesystem             Inodes  IUsed    IFree IUse% Mounted on
                      3264000 583552  2680448   18% /
tmpfs                  220064     16   220048    1% /dev/shm
/dev/sda1              128016     46   127970    1% /boot
                     11714560  12254 11702306    1% /home

Also the system monitor shows: enter image description here

Command & Program output:

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  • Add a screen from your command and program output to your post for more help. Oct 10, 2014 at 8:14
  • Try df -i to show inode usage.
    – wurtel
    Oct 10, 2014 at 8:31
  • I've added what you want. Oct 10, 2014 at 11:34
  • 1
    You are trying to install in /opt/Xlinks, which has 11GB free( /opt belong to / filessytem) try to install under /home/XLinks which has 141 Gb free.
    – Archemar
    Oct 10, 2014 at 11:38

1 Answer 1


The information reported by your various tools are consistent. There is approximately 151Gb free on your disks, among which 141Gb for the /home directory and 11Gb for the rest of the system. What happens is that you program must install somewhere in /opt which is not under the same logical partition as /home where there is room but under the root partition when there is only 11Gb left.

  • I don't know how it happened or why CentOS set the directories in this way. Can I resize the amount of disk space assigned to directories? Oct 10, 2014 at 12:06
  • I will try to use system-config-lvm to resize the logical volumes. Oct 10, 2014 at 12:38
  • This is one of the reasons LVM is great, the risk of breaking things when resizing is reduced. Still, be careful and back things up before...
    – lgeorget
    Oct 10, 2014 at 15:46

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