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Orphans
Asked: 2021-02-26 11:22:20 +0800 CST

How can I determine the version of a remote NFS share?

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I am having trouble with a some software, that only can mount NFSv3 and NFSv4 share - it can not mount NFSv4.1 or NFSv4.2.

Since I do not have access to the server itself, I cannot determine what exact version of NFS is being used.

I am aware of the rpcinfo command:

rpcinfo -p server

which print out the version of the shares like this:

   program vers proto   port  service
    100000    4   tcp    111  portmapper
    100000    3   tcp    111  portmapper
    100000    2   tcp    111  portmapper
    100000    4   udp    111  portmapper
    100000    3   udp    111  portmapper
    100000    2   udp    111  portmapper
      7507    1   tcp   7507
    100024    1   udp  20049  status
    100024    1   tcp  20049  status
    100003    3   tcp   2049  nfs
    100005    1   tcp  20048  mountd
    100005    3   tcp  20048  mountd
    100003    4   tcp   2049  nfs
    100021    4   tcp  20050  nlockmgr

Or the following:

rpcinfo -u server nfs 3
rpcinfo -t server nfs 4

That prints:

program 100003 version 3 ready and waiting

and

program 100003 version 4 ready and waiting

However, how do I determine in NFSv4.1 or NFSv4.2 is being used by the server from the client?

linux nfs network-share nfs4

1 Answers

  1. Best Answer

    nfsstat -m

    Watch out for “vers” inside the reported flags.

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