[Bug 1084178] Re: auto.net does not handle mutliple mount points from a remote

[Serge Hallyn]

This turns out to not be a bug, but a misconfiguration.

Your /etc/exports specifies 'fsid=0' for both exports.  You don't have
to specify an fsid, but if you do, it takes the place of the default
uuid which nfsd would use to identify the filesystems.  In other words,
you told the server that both are the same.

** Changed in: autofs (Ubuntu)
       Status: Confirmed => Invalid

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Title:
  auto.net does not handle mutliple mount points from a remote

Status in “autofs” package in Ubuntu:
  Invalid

Bug description:
  When using auto.net and mounting multiple remote exports, only one mount works and autofs steps onto the other mounts.
  The problem appears in /proc/mounts (see details in walk-thru below)

  **** HOSTA *****
  NFS Host (i.e. hosta):
  $ uname -a
  Linux hosta 2.6.18-274.3.1.el5 #1 SMP Fri Aug 26 18:49:02 EDT 2011 x86_64 x86_64 x86_64 GNU/Linux

  $ cat /etc/exports
  /opt/logisoft hostb(rw,insecure,sync,nohide,fsid=0,no_root_squash)
  /home hostb(rw,insecure,sync,nohide,fsid=0,no_root_squash)

  **** HOSTB *****
  AutoFS Host (i.e. hostb):
  $ uname -a
  Linux hostb 3.2.0-33-generic #52-Ubuntu SMP Thu Oct 18 16:29:15 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

  $ df
  hosta:/opt/logisoft    816146560 179367200  594652800  24% /net/hosta/opt/logisoft
  hosta:/home            816146560 179367200  594652800  24% /net/hosta/home

  $ cd /net/hosta/home
  $ ls -l
  drwxrwxrwx 43 91 91 12288 Nov 20 13:03 eci
  drwxrwxrwx 43 91 91  4096 May 28  2012 oti
  drwxrwxrwx  5 91 91  4096 Jul 20  2011 shared

  $ cd /net/hosta/opt/logisoft
  $ ls -1
  drwxrwxrwx 43 91 91 12288 Nov 20 13:03 eci
  drwxrwxrwx 43 91 91  4096 May 28  2012 oti
  drwxrwxrwx  5 91 91  4096 Jul 20  2011 shared
  *** (Note that the listing is the same! This is not correct!) ***

  *********** PROBLEM VISIBLE HERE ********************
  $ cat /proc/mounts
  hosta:/home/ /net/hosta/opt/logisoft nfs rw,nosuid,nodev,relatime,vers=3,rsize=32768,wsize=32768,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=172.27.101.66,mountvers=3,mountport=960,mountproto=udp,local_lock=none,addr=172.27.101.66 0 0
  hosta:/home/ /net/hosta/home nfs rw,nosuid,nodev,relatime,vers=3,rsize=32768,wsize=32768,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=172.27.101.66,mountvers=3,mountport=960,mountproto=udp,local_lock=none,addr=172.27.101.66 0 0

  $ umount /net/hosta/home
  $ df
  hosta:/opt/logisoft    816146560 179367200  594652800  24% /net/hosta/opt/logisoft

  $ umount /net/hosta/opt/logisoft
  /net/hosta/opt/logisoft was not found in /proc/mounts
  /net/hosta/opt/logisoft was not found in /proc/mounts

  *********** PROBLEM VISIBLE HERE ********************
  $ cat /proc/mounts
  hosta:/home/ /net/hosta/opt/logisoft nfs rw,nosuid,nodev,relatime,vers=3,rsize=32768,wsize=32768,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=172.27.101.66,mountvers=3,mountport=960,mountproto=udp,local_lock=none,addr=172.27.101.66 0 0
  --- 
  ApportVersion: 2.0.1-0ubuntu15
  Architecture: amd64
  DistroRelease: Ubuntu 12.04
  InstallationMedia: Ubuntu-Server 11.04 "Natty Narwhal" - Release amd64 (20110426)
  MarkForUpload: True
  Package: autofs 5.0.6-0ubuntu5
  PackageArchitecture: amd64
  ProcVersionSignature: Ubuntu 3.2.0-33.52-generic 3.2.31
  Tags:  precise
  Uname: Linux 3.2.0-33-generic x86_64
  UpgradeStatus: Upgraded to precise on 2012-07-16 (136 days ago)
  UserGroups:

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