[Bug 1321045] Re: Can't unmount NFS mount point as user ("not found" error)

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: util-linux (Ubuntu)
       Status: New => Confirmed

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Title:
  Can't unmount NFS mount point as user ("not found" error)

Status in “util-linux” package in Ubuntu:
  Confirmed
Status in “util-linux” package in Debian:
  New

Bug description:
  Dear fellows,

  I had a strange behavior since I upgraded to 14.04 LTS about my user-
  mountable NFS shares. My /etc/fstab follows:

  # NFS shares from Synology Diskstation
  192.168.25.107:/volume1/Documentos        /mnt/Documentos nfs4    rw,noauto,users,rsize=32768,wsize=32768,timeo=14,intr
  192.168.25.107:/volume1/Downloads         /mnt/Downloads  nfs4    rw,noauto,users,rsize=32768,wsize=32768,timeo=14,intr
  192.168.25.107:/volume1/Imagens           /mnt/Imagens    nfs4    rw,noauto,users,rsize=32768,wsize=32768,timeo=14,intr
  192.168.25.107:/volume1/Músicas           /mnt/Músicas    nfs4    rw,noauto,users,rsize=32768,wsize=32768,timeo=14,intr
  192.168.25.107:/volume1/Vídeos            /mnt/Vídeos     nfs4    rw,noauto,users,rsize=32768,wsize=32768,timeo=14,intr

  Notice I'm using noauto (don't try to mount at boot) and users (any user can mount or umount).
  I can mount normally as user. However, when I try to umount, the following message appears:

  $ umount /mnt/Documentos
  umount.nfs4: /mnt/Documentos: not found
  umount.nfs4: /mnt/Documentos: not found
  (message appears 2 times, exactly)

  So, if I try to issue a umount as a superuser (sudo umount
  /mnt/Documentos), it works flawlessly.

  Believe this is a bug that happened in the past on Debian (see
  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=661527), and it was
  solved back then. I'm afraid it would be reintroduced at some point.

  Status of directory permissions at /mnt:

  $ ls -l /mnt
  total 20
  drwxr-xr-x 2 tulio tulio 4096 Abr 12 19:57 Documentos
  drwxr-xr-x 2 tulio tulio 4096 Mar 11 20:20 Downloads
  drwxr-xr-x 2 tulio tulio 4096 Mar 11 20:20 Imagens
  drwxr-xr-x 2 tulio tulio 4096 Mar 11 20:20 Músicas
  drwxr-xr-x 2 tulio tulio 4096 Mar 12 20:59 Vídeos

  Thanks in advance.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: libmount1 2.20.1-5.1ubuntu20
  ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Mon May 19 20:30:47 2014
  ProcEnviron:
   LANGUAGE=pt_BR:pt:en
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=pt_BR.UTF-8
   SHELL=/bin/bash
  SourcePackage: util-linux
  UpgradeStatus: Upgraded to trusty on 2014-04-27 (22 days ago)

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