[Bug 791588] Re: no idmapd for nfs4-clients

[Steve Langasek]

On Thu, Jun 02, 2011 at 11:55:49PM -0000, Mitsch wrote:
> > I'm using it this way myself without any trouble.
  
> If you have already installed nfs-kernel-server on your system, you are
> right: dpkg installs several directories under /var/lib/nfs/rpc_pipefs
> with that package, also the "nfs" directory, needed for idmapd (as
> server AND client). But if you only install nfs-common, idmapd won't
> start until you mkdir /var/lib/nfs/rpc_pipefs/nfs by hand. Promise!

This is certainly not the case.  First, the nfs-kernel-server package does  
not ship, or create at install time, any files under
/var/lib/nfs/rpc_pipefs.   Second, /var/lib/nfs/rpc_pipefs is a kernel
*mount point*, so creating directories under it is pointless; they're
created when mounting the filesystem.

Third, I am using this as I described with no nfs-kernel-server package
installed, and can assure you that idmap has no trouble starting at boot
provided that either NEED_IDMAPD is set in /etc/default/nfs-common, or nfs4 
mounts are listed in /etc/fstab.

I don't see anywhere that the bug you describe could be hiding.  I'm afraid 
it looks like you've misdiagnosed the original symptoms caused by trying to 
start rpc.idmapd by hand instead of via the upstart job.  As such, I am
closing this bug report as invalid.  If you can tell us how to reproduce the
bug step-by-step from a clean install, calling rpc.idmapd via the upstart   
job and *not* by hand, please reopen this report providing that information.


** Changed in: nfs-utils (Ubuntu)
       Status: Incomplete => Invalid

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https://bugs.launchpad.net/bugs/791588

Title:
  no idmapd for nfs4-clients

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

Bug description:
  Hello!

  Thought this one is bug-report for nfs-common. (And I really typed
  "ubuntu-bug nfs-common" - I'm innocent! I was redirected!)

  I have a debian nfs-server that uses nfs4 and it isn't possible for
  ubuntu to use nfs4-mounts properly, because idmapd won't start
  although it's configured in /etc/default/nfs-common:

  #######################
  $ cat /etc/default/nfs-common 

  NEED_STATD=
  STATDOPTS=
  NEED_IDMAPD=yes
  NEED_GSSD=

  #######################

  A "ps aux" executed on both server and client shows that on the server rpc.idmapd is running, but on the client side it's not.
  Executing rpc.idmapd on the client manually fails:

  #######################
  $ sudo rpc.idmapd -fv

  rpc.idmapd: libnfsidmap: using domain: localdomain

  rpc.idmapd: libnfsidmap: loaded plugin
  /usr/lib/libnfsidmap/nsswitch.so for method nsswitch

  rpc.idmapd: Expiration time is 600 seconds.
  rpc.idmapd: Opened /proc/net/rpc/nfs4.nametoid/channel
  rpc.idmapd: Opened /proc/net/rpc/nfs4.idtoname/channel
  rpc.idmapd: main: (/var/lib/nfs/rpc_pipefs/nfs): No such file or directory

  #######################

  Easy workaround: create that directory!

  #######################
  $ sudo mkdir /var/lib/nfs/rpc_pipefs/nfs

  #######################

  Unfortunately, this doesn't fix the problem on all ubuntu machines. I
  have three of them: A Powermac G4 with an Ubuntu 11.04 fallback Gnome
  2.x-Desktop, a 64bit-machine as a HTPC with a minimal Ubuntu
  installation running XBMC and a netbook with Unity-Desktop. The first
  two do, the netbook doesn't. Could be a problem with WLAN (the netbook
  is not cable-connected) or the server configuration. Got to check a
  few things here…

  But one thing's clear: As long as the package nfs-common doesn't
  create a /var/lib/nfs/rpc_pipefs/nfs directory, idmapd won't start and
  there is no chance to get nfs4 working properly.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: nfs-common 1:1.2.2-4ubuntu5
  ProcVersionSignature: Ubuntu 2.6.38-9.43-powerpc 2.6.38.4
  Uname: Linux 2.6.38-9-powerpc ppc
  Architecture: powerpc
  Date: Wed Jun  1 21:39:56 2011
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release powerpc (20101008)
  ProcEnviron:
   LANGUAGE=de_DE:en
   PATH=(custom, user)
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  SourcePackage: nfs-utils
  UpgradeStatus: Upgraded to natty on 2011-05-03 (28 days ago)

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