AIX client fails to mount from RHEL NFS server with error 'Operation not permitted'

Solution Verified - Updated -

Issue

AIX client is trying to mount NFS export from an RHEL Linux box. While trying to mount, it gets the following error:

vmount: operation not permitted

Environment

  • RedHat Enterprise Linux 6.x - NFS Server
  • IBM AIX 4.x - NFS Client
  • IBM AIX 5.x - NFS Client

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