Public bug reported:
Binary package hint: samba
I mount a CIFS share and from time to time the mount becomes invalid and
cannot be unmounted. The utility complains that it can only unmount CIFS
filesystems:
r...@sobek:~# mount | grep jon/h
//tower3/home13/njd33 on /home/jon/h type cifs (rw,mand)
r...@sobek:~# ls ~jon/h
ls: cannot access /home/jon/h: No such file or directory
r...@sobek:~# df -h | grep -C1 jon/h
df: `/home/jon/h': No such file or directory
r...@sobek:~# umount.cifs ~jon/h
This utility only unmounts cifs filesystems.
r...@sobek:~# umount ~jon/h
This utility only unmounts cifs filesystems.
This utility only unmounts cifs filesystems.
The bizarre thing is, I can mkdir ~jon/h, and re-mount on top.
How on earth did my mount directory get removed, even with a mount on
top? I have not done this intentionally myself.
r...@sobek:/home/jon# mkdir h
r...@sobek:/home/jon# mount h
Password:
r...@sobek:/home/jon# mount | grep jon/h
//tower3/home13/njd33 on /home/jon/h type cifs (rw,mand)
//tower3/home13/njd33 on /home/jon/h type cifs (rw,mand,noexec,nosuid,nodev)
I normally try to mount this on login via libpam-mount (and the hung mount in
the example above is one such mount, after a cold boot and single login).
However I have seen the unmountable stuck filesystem occur even with a
hand-made mount.
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: smbfs 2:3.4.7~dfsg-1ubuntu3.2
ProcVersionSignature: Ubuntu 2.6.32-24.43-generic-pae 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic-pae i686
Architecture: i386
CIFSMounts: Error: command ['mount', '|', 'grep', 'cifs'] failed with exit code
1: mount: only root can do that
Date: Mon Sep 27 09:20:02 2010
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
ProcEnviron:
PATH=(custom, user)
LANG=en_GB.utf8
SHELL=/bin/bash
SambaClientRegression: No
SourcePackage: samba
** Affects: samba (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 lucid
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unable to unmount broken cifs mount
https://bugs.launchpad.net/bugs/648609
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