update the lxc.conf man page

Update the man page regarding the image or block device
supported as a rootfs.

Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>

diff --git a/doc/lxc.conf.sgml.in b/doc/lxc.conf.sgml.in
index f975d57e7052234d52ef5da65be1846885ee47a8..c3ee066dc3f919e1cf8dba35990d6a8259c1f36a 100644 (file)
--- a/doc/lxc.conf.sgml.in
+++ b/doc/lxc.conf.sgml.in
@@ -404,7 +404,13 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
            <para>
              specify a file location in
              the <filename>fstab</filename> format, containing the
-             mount informations.
+             mount informations. If the rootfs is an image file or a
+             device block and the fstab is used to mount a point
+             somewhere in this rootfs, the path of the rootfs mount
+             point should be prefixed with the
+             <filename>@LXCROOTFSMOUNT@</filename> default path or
+             the value of <option>lxc.rootfs.mount</option> if
+             specified.
            </para>
          </listitem>
        </varlistentry>
@@ -437,9 +443,10 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
          </term>
          <listitem>
            <para>
-             specify a directory to become the root of the container.
-             If not specified, the container shares its root file
-             system with the host.
+             specify the root file system for the container. It can
+             be an image file, a directory or a block device. If not
+             specified, the container shares its root file system
+             with the host.
            </para>
          </listitem>
        </varlistentry>