nfs.sls

osm_downloads:
    mount.mounted:
        - name: /mnt/osm
        - device: 192.168.1.123:/srv/osm_downloads
        - fstype: nfs
        - mkmnt: True
        - opts:
            - ro
        - require:
            - pkg: nfs

salt error message

    State: - mount
    Name:      /mnt/osm
    Function:  mounted
        Result:    False
        Comment:   An exception occurred in this state: Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/salt/state.py", line 1239, in call
    ret = self.states[cdata['full']](*cdata['args'])
  File "/usr/lib/python2.7/dist-packages/salt/states/mount.py", line 109, in mounted
    if ret['changes']['mount']:
KeyError: 'mount'