Re: what is /.udev for ?

[Ben Pfaff <blp@cs.stanford.edu>]

Ron Johnson <ron.l.johnson@cox.net> writes:

> One thing I do know is that traditional apps like df (and anything
> that uses stat(), I guess) don't know about /.dev, and so return
> false information:
>
>   $ df
>   Filesystem     1K-blocks      Used Available Use% Mounted on
>   /dev/hda3        9843308   5428016   3915272  59% /
>   tmpfs             501936         0    501936   0% /dev/shm
>   /dev/hda2          46668     20415     23844  47% /boot
>   /dev/hda5        2995936   1790220   1205716  60% /home
>   /dev/hda6      105280504  78681360  21251108  79% /data
>   /dev             9843308   5428016   3915272  59% /.dev
>   none                5120      2564      2556  51% /dev

It's not really false, it's just that /.dev is a subtree of / and
so shows the same information as / does.
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