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Date: Tue, 8 Jan 2008 13:26:01 -0500
From: Wesley Shields <wxs@FreeBSD.org>
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Cc: "Gelsema, P \(Patrick\)" <gelsemap@superhero.nl>
Subject: Re: jail on ZFS - "Unable to mount devfs"
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[ Removing -current as AFAIK it is not applicable there ]

On Tue, Jan 08, 2008 at 08:24:44AM -0800, snowcrash+freebsd wrote:
> hi wesley,
> 
> > I have a jail running in a ZFS environment.
> >
> > wxs@ack ~ % jls
> >    JID  IP Address      Hostname                      Path
> >      3  192.168.1.100   asterisk                      /u/jails/asterisk
> > wxs@ack ~ % mount | grep "data"
> > data on /u (zfs, NFS exported, local, noatime)
> > wxs@ack ~ % mount | grep devfs
> > devfs on /dev (devfs, local)
> > devfs on /u/jails/asterisk/dev (devfs, local)
> > wxs@ack ~ %
> 
> here's what i have
> 
> jls
> 	   JID  IP Address   Hostname             Path
> 		 1  10.0.0.200   jTEST.internal.net   /j/jTEST
> 
> mount
> 	z on / (zfs, local)
> 	devfs on /dev (devfs, local)
> 	/dev/mirror/gm0s1a on /bootdir (ufs, local, soft-updates)
> 	z/data on /data (zfs, local)
> 	z/home on /home (zfs, local)
> 	z/j on /j (zfs, local)
> 	z/tmp on /tmp (zfs, local)
> 	z/usr on /usr (zfs, local)
> 	z/var on /var (zfs, local)
> 	/j/jMROOT on /j/jTEST (nullfs, local, read-only)
> 	/j/s/jTEST on /j/jTEST/s (nullfs, local)
> 	devfs on /j/jTEST/dev (devfs, local)
> 
> which, i think?, says the same.
> 
> argh. confused. following too many threads with partial solutions ...
> 
> can you share your setup-a-jail-on-a-zfs'd-host steps?

To be honest, I don't do much with them really.  I mostly just set them
up to get a clean environment for playing around in without fear of
destroying anything of real importance.

I follow the instructions in jail(8) where DESTDIR is a location to ZFS
setup.

-- WXS