doc/man: Update mount.ceph.rst for clarity

Updated the "examples" section of mount.ceph.rst to reflect the
correct way to mount cephfs instances other than the default as of
Ceph Octopus and noted the `mds_namespace` option will be deprecated
in a future release as opposed to the new `fs` option.

Signed-off-by: Jarett DeAngelis <starkruzr@gmail.com>

diff --git a/doc/man/8/mount.ceph.rst b/doc/man/8/mount.ceph.rst
index f52389993b6fb5609b195b9e4b947e9c5a34f065..cbd7ab5834d9eb140e7dead47aec16f90cea7b19 100644 (file)
--- a/doc/man/8/mount.ceph.rst
+++ b/doc/man/8/mount.ceph.rst
@@ -193,8 +193,11 @@ Mount only part of the namespace/file system::
     mount.ceph :/some/directory/in/cephfs /mnt/mycephfs
 
 Mount non-default FS, in case cluster has multiple FSs::
-
-    mount -t ceph :/ /mnt/mycephfs2 -o mds_namespace=mycephfs2
+    mount -t ceph :/ /mnt/mycephfs2 -o fs=mycephfs2
+    
+    or
+    
+    mount -t ceph :/ /mnt/mycephfs2 -o mds_namespace=mycephfs2 # This option name is deprecated.
 
 Pass the monitor host's IP address, optionally::