Fix the lxc manpage a bit

doc/lxc.sgml.in

@@ -135,35 +135,20 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
       <para>
 
-	The kernel version >= 2.6.27 shipped with the distros, will
+	The kernel version >= 2.6.32 shipped with the distros, will
 	work with <command>lxc</command>, this one will have less
 	functionalities but enough to be interesting.
 
-	With the kernel 2.6.29, <command>lxc</command> is fully
-	functional.
-
 	The helper script <command>lxc-checkconfig</command> will give
 	you information about your kernel configuration.
       </para>
 
       <para>
-	Before using the <command>lxc</command>, your system should be
-	configured with the file capabilities, otherwise you will need
-	to run the <command>lxc</command> commands as root.
-      </para>
-
-      <para>
 	  The control group can be mounted anywhere, eg:
 	  <command>mount -t cgroup cgroup /cgroup</command>.
 
-	  If you want to dedicate a specific cgroup mount point
-	  for <command>lxc</command>, that is to have different cgroups
-	  mounted at different places with different options but
-	  let <command>lxc</command> to use one location, you can bind
-	  the mount point with the <option>lxc</option> name, eg:
-	  <command>mount -t cgroup lxc /cgroup4lxc</command> or
-	  <command>mount -t cgroup -ons,cpuset,freezer,devices
-	  lxc /cgroup4lxc</command>
+	  It is however recommended to use cgmanager, cgroup-lite or systemd
+	  to mount the cgroup hierarchy under /sys/fs/cgroup.
 
       </para>