[SOLVED] df (GNU coreutils) 6.9 declares used space not visible to ls.

stf92 · 11-02-2013, 12:14 AM

kernel 3.2.29, slackware 12.0

Hi: Watch this:

Code:

semoi@local:~$ df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/hda1             19228276   7437300  10814228  41% /
/dev/hda3             19535036   5526524  14008512  29% /xp
/dev/hda4             77618044     82604  77535440   1% /almacen

semoi@local:~$ ls -la /almacen/
total 12
drwxrwxrwx  1 root root 8192 2013-10-22 10:57 ./
drwxr-xr-x 22 root root 4096 2013-10-22 11:18 ../
semoi@local:~$

Could somebody explain this? Who is using the 82MB in the df command output?

druuna · 11-02-2013, 03:49 AM

The difference might be explained by the reserved blocks. A certain percentage of disk space is reserved for the super user (see the mke2fs manual page, the -m option).

You can see what the current block count and reserved block count are by doing the following:

Code:

dumpe2fs /dev/hda4 | egrep "Block count:|Reserved block count:"

stf92 · 11-02-2013, 03:08 PM

Thanks, druuna. I thought something so could be happening, not sure though. Now, I forgot to tell the file system is ntfs, managed by ntfs-3g. But, I suppose something like that might be happening here.