On a RHEL NFS client, running setfacl returns "Operation not supported"

Solution Verified - Updated -


  • Unable to set ACL (Access Control List) on the NFS share from the NFS client, getting below error:
$ setfacl -m d:o:r /opt/addserv/shared/mq/qmgrs/ACRSP1/errors
setfacl: /opt/addserv/shared/mq/qmgrs/ACRSP1/errors: Operation not supported
  • setfacl returns "Operation not supported" from filesystem shared from rhel 6 and mounted on rhel 6 as well but using NFS version 3.


  • Red Hat Enterprise Linux 5 (NFS client)
  • Red Hat Enterprise Linux 6 (NFS client)

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