ceph-volume lvm.prepare add example of raw device or partition in help menu

Signed-off-by: Alfredo Deza <adeza@redhat.com>
(cherry picked from commit 6fb8d566aac0e0fa081e6500852855ad177f784f)

diff --git a/src/ceph-volume/ceph_volume/devices/lvm/prepare.py b/src/ceph-volume/ceph_volume/devices/lvm/prepare.py
index da4f2bbc86394d02a8975a17193083c2556f10e1..5a7daa3dc003b7c8e86105ef2c350b2c79e107f1 100644 (file)
--- a/src/ceph-volume/ceph_volume/devices/lvm/prepare.py
+++ b/src/ceph-volume/ceph_volume/devices/lvm/prepare.py
@@ -259,6 +259,10 @@ class Prepare(object):
 
               ceph-volume lvm prepare --filestore --data {vg/lv} --journal {vg/lv}
 
+          Existing block device, that will be made a group and logical volume:
+
+              ceph-volume lvm prepare --filestore --data /path/to/device --journal {vg/lv}
+
         Bluestore
         ---------