Re: coreutils-7.6: "df" does not show filesystem mounted via mount(2)

[Jim Meyering]

Stuart Kemp wrote:
> Using FC 11; problem occurs with "df" from installed coreutils-7.2 and also 
> coreutils-7.6
>
> Problem:
>   Application uses mount(2) to mount a filesystem. This works just fine, and 
> the filesystem can be accessed. However, "df -a" does not show this 
> filesystem. Problem is that "df" uses setmntent() with /etc/mtab (see 
> lib/mountlist.c), but the /etc/mtab file is not updated when mount(2) is 
> called (application is run by root). File /proc/mounts does indeed contain 
> the newly mounted filesystem info. /proc/mounts is a sym-link; both root (who 
> ran the applicaiton) and a non-root user have the same contents in 
> /proc/mounts.
>
> I tried this with both a local filesystem of type "ext3" and mounting from a 
> Windows machine ("cifs").

Thanks for the report.
However, if /etc/mtab is not being updated,
then I suspect that is your problem.