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Date:      Fri, 28 May 2010 15:07:53 -0700 (PDT)
From:      Tim Gustafson <tjg@soe.ucsc.edu>
To:        freebsd-jail@freebsd.org
Subject:   Mounting NFS From Within a Jail
Message-ID:  <945052632.315351275084473673.JavaMail.root@mail-01.cse.ucsc.edu>
In-Reply-To: <580521541.315331275084459494.JavaMail.root@mail-01.cse.ucsc.edu>

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Hi,

I previously sent this message to the freebsd-questions list, but I think perhaps I should have posted it to the freebsd-jail list instead.

Is it possible to mount an NFS file system from within a jail?

On my jail host, I have:

security.jail.mount_allowed: 1

>From the jail host, I can mount just fine:

root@jailhost: mount
/dev/da0s1a on / (ufs, local)
devfs on /dev (devfs, local, multilabel)
nfsserver:/usr/ports on /usr/ports (nfs)
nfsserver:/usr/src on /usr/src (nfs)
nfsserver:/usr/obj on /usr/obj (nfs)

However, from within a jail, I get:

root@jailguest: mount nfsserver:/usr/ports /usr/ports
mount_nfs: /usr/ports, : Operation not permitted

Am I missing something else here?

Tim Gustafson
Baskin School of Engineering
UC Santa Cruz
tjg@soe.ucsc.edu
831-459-5354




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