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SubjectRe: How come dd if=/dev/zero of=/nfs/dev/null does not send packets over the network?
Date
"Piszcz, Justin Michael" <justin.piszcz@mitretek.org> writes:

> root@jpiszcz:~# mkdir /p500/dev
> root@jpiszcz:~# mount 192.168.0.253:/dev /p500/dev
> root@jpiszcz:~# echo blah > /p500/dev/null
> root@jpiszcz:~# ls -l /p500/dev/null
> crw-rw-rw- 1 root sys 1, 3 Jul 17 1994 /p500/dev/null
> root@jpiszcz:~# dd if=/dev/zero of=/p500/dev/null
>
> 6179737+0 records in
> 6179736+0 records out
>
> Instead it treats it as a local block device?
>
> Kernel 2.6.5.

That is how it's supposed to work. Think about root on nfs.

--
Måns Rullgård
mru@kth.se

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