check disk usage

[Tino Keitel]

On Thu, Oct 17, 2002 at 13:58:46 -0700, Xiaogeng (Shawn) Jin wrote:
> Hi,
> 
> My root filesystem is jffs2, which is mounted by kernel getting booting 
> parameters "root=/dev/mtdblock3 rw" from the command line. I noticed 
> that running 'df -k' only shows the usage of those devices that are 
> mounted explicitly by 'mount' command but not the root filesystem. The 
> following is the result of 'df -k' running on busybox-0.60.2.
> 
> # df -k
> Filesystem           1k-blocks      Used Available Use% Mounted on
> /dev/mtdblock0           16384       688     15696   4% /usr
> /dev/mtdblock1           16384      5836     10548  36% /home
> /dev/mtdblock2           16384       652     15732   4% /var
> 
> On a regular linux system, e.g. RedHat, we do get information about the 
> usage of the root filesytem, right?
> 
> Is this a problem? If it's is, is it related to jffs2 or busybox?

Have you checked the strace output of df -k? As far as I can see, it
looks in /proc/mounts. Maybe this is of some help to you.

Regards,
Tino

-- 
tino.keitel at innominate.com
dipl.-inf.                        Innominate Security Technologies AG
software engineer                                   networking people
tel: +49.30.6392-3308                      http://www.innominate.com/