doc: Added install ceph-common instruction.

Signed-off-by: John Wilkins <john.wilkins@inktank.com>

diff --git a/doc/start/quick-rbd.rst b/doc/start/quick-rbd.rst
index e15d3366e3131d9cba71ff49d5c387b9215f2c59..a466771502d8a19a4dae9296a240b3b5c7599eba 100644 (file)
--- a/doc/start/quick-rbd.rst
+++ b/doc/start/quick-rbd.rst
@@ -10,6 +10,10 @@ Execute this quick start on the admin node.
 .. note:: The Ceph Block Device is also known as :term:`RBD` or :term:`RADOS`
    Block Device.
 
+#. Install ``ceph-common``. ::
+
+       sudo apt-get install ceph-common
+
 #. Create a block device image. :: 
 
        rbd create foo --size 4096      [-m {mon-IP}] [-k /path/to/ceph.client.admin.keyring]