[Bug 939028] Re: NFS3 fails to mount from a 12.04 client to a 12.04 server

[Steve Langasek]

*** This bug is a duplicate of bug 945651 ***
    https://bugs.launchpad.net/bugs/945651

** This bug has been marked a duplicate of bug 945651
   Wrong path to rpcinfo  in NFS start script

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https://bugs.launchpad.net/bugs/939028

Title:
  NFS3 fails to mount from a 12.04 client to a 12.04 server

Status in “nfs-utils” package in Ubuntu:
  Confirmed

Bug description:
  On the client:

  #mount -t nfs -o vers=3,nfsvers=3,udp,insecure -v 192.168.4.1:/data/media/mythtv temp/
  mount.nfs: timeout set for Thu Feb 23 10:52:15 2012
  mount.nfs: trying text-based options 'vers=3,nfsvers=3,udp,insecure,addr=192.168.4.1'
  mount.nfs: prog 100003, trying vers=3, prot=17
  mount.nfs: trying 192.168.4.1 prog 100003 vers 3 prot UDP port 2049
  mount.nfs: prog 100005, trying vers=3, prot=17
  mount.nfs: trying 192.168.4.1 prog 100005 vers 3 prot UDP port 44107
  mount.nfs: portmap query failed: RPC: Program/version mismatch
  mount.nfs: Operation not permitted

  On the server:

  cat /etc/exports
  /data/media/mythtv	*(rw,no_subtree_check,no_root_squash)

  If I use NFS4 "it works" but UDP brakes after a while. TCP causes lag
  due to the protocol. before the client upgrade this worked. The server
  has been running "12.04" for a LONG time now, client updated 1 day
  ago.

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