Mounting a DFS share fails with Error 22 (invalid argument)

Solution Verified - Updated -

Issue

  • Unable to mount a DFS share.
  • Unable to mount a CIFS DFS share. See a sample:
[root@server01 ~]# mount //dfsserver.example.com/example/share /mnt/example -o username=testuser,workgroup=EXAMPLE,uid=testuser,rw,gid=testuser,dir_mode=0775
mount error(22): Invalid argument
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)

Environment

  • Red Hat Enterprise Linux
  • Windows Server 2012

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