Is there a way from a client machine to ask an nfs server which minor versions of NFSv4 are available without actually mounting? I'm trying to programmatically audit which NFSv4 versions are provided by our nfs servers, however I do not have access to the nfs servers themselves.

rpcinfo only returns the major versions

$ rpcinfo -p <nfs server> | grep nfs
    100003    2   tcp   2049  nfs
    100003    3   tcp   2049  nfs
    100003    4   tcp   2049  nfs
    100003    2   udp   2049  nfs
    100003    3   udp   2049  nfs
    100003    4   udp   2049  nfs

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