fix variable name

modules/conf_ceph.sh

@@ -74,7 +74,7 @@ conf_ceph()
             echo "# Ceph :" >> /etc/fstab
             for mnt in $CEPH_MOUNTS; do
                 mkdir -pv "$mnt"
-                echo "$srvlist:/    $(eval echo \$CEPH_MP_$mnt)       ceph    defaults,_netdev,name=admin,secret=$secret,id=$mnt  0 0" >> /etc/fstab
+                echo "$srvlist:/    $(eval echo \$CEPH_MP_$mnt)       ceph    defaults,_netdev,name=admin,secret=$secret,mds_namespace=$mnt  0 0" >> /etc/fstab
             done
         else
             prnt W "Ceph entry already in /etc/fstab, nothing to do"