no output from df

[Stuart Hughes]

I'm using busybox-1.1.3 on powerpc board that is booted with an nfs root
filesystem and is running devfs (devfsd is started before mounting
filesystems).

If I do a df, there is no output other than:

# df
Filesystem           1k-blocks      Used Available Use% Mounted on

Digging into this a bit, it seems likely that it's because there is
no /dev/root entry.  Presumably this disappears when devfs mounts
over /dev.

I've googled looking for ways to properly fix this, but found nothing.

Does anyone know how to fix this?

Regards, Stuart