Index: head/usr.sbin/jail/jail.8
===================================================================
--- head/usr.sbin/jail/jail.8	(revision 48721)
+++ head/usr.sbin/jail/jail.8	(revision 48722)
@@ -1,45 +1,62 @@
 .\"
 .\"----------------------------------------------------------------------------
 .\""THE BEER-WARE LICENSE" (Revision 42):
 .\"<phk@FreeBSD.ORG> wrote this file.  As long as you retain this notice you
 .\"can do whatever you want with this stuff. If we meet some day, and you think
 .\"this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
 .\"----------------------------------------------------------------------------
 .\"
-.\"$Id: jail.8,v 1.2 1999/05/04 18:20:53 phk Exp $
+.\"$Id: jail.8,v 1.3 1999/05/05 19:23:45 phk Exp $
 .\"
 .\"
 .Dd April 28, 1999
 .Dt JAIL 8
 .Os FreeBSD 4.0
 .Sh NAME
 .Nm jail
 .Nd imprison process and its descendants
 .Sh SYNOPSIS
 .Nm jail
 .Ar path
 .Ar hostname
 .Ar ip-number
 .Ar command
 .Ar ...
 .Sh DESCRIPTION
 The
 .Nm
 command imprisons a process and all future decendants.
 .Pp
 Please see the
 .Xr jail 2
 man page for further details.
+.Sh EXAMPLES
+This shows how to setup a jail directory tree:
+.Bd -literal 
+D=/here/is/the/jail
+cd /usr/src
+make hierarchy DESTDIR=$D
+make obj
+make all
+make install DESTDIR=$D
+cd etc
+make distribution DESTDIR=$D
+cd $D/dev
+sh MAKEDEV jail
+cd $D
+ln -sf dev/null kernel
+echo "proc $D/proc procfs rw 0 0" >> /etc/fstab
+.Ed
 .Sh SEE ALSO
 .Xr chroot 2 ,
 .Xr jail 2
 .Sh HISTORY
 The
 .Fn jail
 function call appeared in
 .Fx 4.0 .
 .Pp
 The jail feature was written by Poul-Henning Kamp for
 R&D Associates
 .Dq Li http://www.rndassociates.com/
 who contributed it to FreeBSD.