[Bug 911796] Re: NFS clients can no longer mount shares

[Giuseppe Vacanti]

** Changed in: nfs-utils (Ubuntu)
       Status: New => Confirmed

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Title:
  NFS clients can no longer mount shares

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

Bug description:
  Possibly the bug is in the server. I cannot decide.

  This is on 10.04.

  After a reboot NFS clients can no longer mount NFS shares. For
  instance:

  mount -v nfs:/cosine /mnt/
  mount: no type was given - I'll assume nfs because of the colon
  mount.nfs: timeout set for Wed Jan  4 15:37:15 2012
  mount.nfs: text-based options: 'addr=192.168.1.11'
  mount.nfs: mount(2): Protocol not supported
  mount.nfs: trying 192.168.1.11 prog 100003 vers 3 prot UDP port 2049
  mount.nfs: trying 192.168.1.11 prog 100005 vers 3 prot UDP port 39863
  mount.nfs: mount to NFS server 'nfs:/cosine' failed: RPC Error: Success

  Because if this clients with entries in /etc/fstab or that make use of
  autofs are just stranded without their disk partitions.

  If I give nfsvers=2, as below, the mount succeeds, but I cannot use
  NFS version 2:

  mount -v -o nfsvers=2 nfs:/cosine /mnt/
  mount: no type was given - I'll assume nfs because of the colon
  mount.nfs: timeout set for Wed Jan  4 15:37:50 2012
  mount.nfs: text-based options: 'nfsvers=2,addr=192.168.1.11'
  nfs:/cosine on /mnt type nfs (rw,nfsvers=2)

  I have clients on 11.10, they can mount but they seem to negotiate a
  lower NFS version:

  mount -v nfs:/cosine /mnt
  mount: no type was given - I'll assume nfs because of the colon
  mount.nfs: timeout set for Wed Jan  4 15:40:32 2012
  mount.nfs: trying text-based options 'vers=4,addr=192.168.1.11,clientaddr=192.168.1.2'
  mount.nfs: mount(2): No such file or directory
  mount.nfs: trying text-based options 'addr=192.168.1.11'
  mount.nfs: prog 100003, trying vers=3, prot=6
  mount.nfs: trying 192.168.1.11 prog 100003 vers 3 prot TCP port 2049
  mount.nfs: prog 100005, trying vers=3, prot=17
  mount.nfs: trying 192.168.1.11 prog 100005 vers 3 prot UDP port 39863
  mount.nfs: portmap query retrying: RPC: Program/version mismatch
  mount.nfs: prog 100005, trying vers=3, prot=6
  mount.nfs: trying 192.168.1.11 prog 100005 vers 3 prot TCP port 45556
  mount.nfs: portmap query failed: RPC: Program/version mismatch
  mount.nfs: prog 100003, trying vers=2, prot=6
  mount.nfs: trying 192.168.1.11 prog 100003 vers 2 prot TCP port 2049
  mount.nfs: prog 100005, trying vers=1, prot=17
  mount.nfs: trying 192.168.1.11 prog 100005 vers 1 prot UDP port 39863
  nfs:/cosine on /mnt type nfs (rw)

  While in the latter case the machine is at least usable (but I have
  problems with ACLs), in the former it is broken

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: nfs-kernel-server 1:1.2.0-4ubuntu4.2
  ProcVersionSignature: Ubuntu 2.6.32-37.81-generic-pae 2.6.32.49+drm33.21
  Uname: Linux 2.6.32-37-generic-pae i686
  Architecture: i386
  Date: Wed Jan  4 15:30:49 2012
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: nfs-utils

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