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Date: Fri, 3 Sep 2010 22:23:32 +0200
From: Roland Smith <rsmith@xs4all.nl>
To: David DEMELIER <demelier.david@gmail.com>
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Cc: freebsd-questions@freebsd.org
Subject: Re: watch(8) does not work in jails
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On Fri, Sep 03, 2010 at 08:40:01PM +0200, David DEMELIER wrote:
> Sorry I made a mistake while I was writing. In fact there is the
> permissions in the jail :
>=20
> markand@Orange ~ $ sudo jexec 1 tcsh
> # su -
> People# ls -l /dev/pts/*
> crw--w----  1 zazak  tty    0, 118  3 Sep 20:39 /dev/pts/0
> crw--w----  1 zazak  tty    0,  99  3 Sep 07:07 /dev/pts/4
> crw--w----  1 zazak  tty    0,  94  3 Sep 20:39 /dev/pts/6

That looks OK.

> People# who
> zazak           pts/0     1 Sep 19:07 (92.147.166.20:S.)
> zazak           pts/4    10 Aug 16:00 (92.147.166.20:S.)
> People# watch pts/0
> watch: fatal: cannot open snoop device

For watch(1) to work, you need the device snp(4) either loaded as a module =
or
built into the kernel. It's not in the GENERIC kernel.

Roland
--=20
R.F.Smith                                   http://www.xs4all.nl/~rsmith/
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