umount cifs sharemount with user or users in /etc/fstab arguments doesn't work any more

[themroc]

Binary package hint: cifs-utils

A samba share mounted as normal user, can no longer umount as normal user, although the /etc/fstab argument "user" or "users" is set.

Here some examples for a share in /etc/fstab (~ means /home/user/):
//share ~/mountpoint cifs users,noauto,credentials=~/.credentials,iocharset=utf8,uid=1000,gid=1000 0 0
or
//share ~/mountpoint cifs users,noauto,credentials=~/.credentials,iocharset=utf8 0 0
or
//share ~/mountpoint cifs user,noauto,credentials=~/.credentials,iocharset=utf8 0 0

This shares are mountable as normal user, but when I try to umount as normal user I receive this German error message:
umount: ~/mountpoint mount und fstab stimmen nicht überein
which means:
umount: ~/mountpoint mount and fstab are not the same (or are not similar)

umount as root is successful and produce no error message.

[themroc (rauchweihe)]

I forgot to say:
Kubuntu 10.10 64bit.

[Max-Ulrich Farber (maxulrichfarber)]

The same problem in Ubuntu 10.10, 32bit.

[Daniel Muller (daniel-muller)]

Same problem in Ubuntu 10.10, 64bit.
When mounting from the console (as user), no problem. Umounting only as root.
When mounting from gnome shortcuts menu, the pop-up error appears: "Timeout waiting for mount to appear". No disk-icon on Desktop but the share is mounted correctly. Umount only possible with root.

[Daniel Muller (daniel-muller)]

I've seen that the same problem was reported on the Debian bugtracker:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=586009

The problem is that mount.cifs appends a trailing slash to the share name in /etc/mtab which differs from the line in /etc/fstab.
Adding the trailing slash in /etc/fstab resolved all my issues:
//share/ ~/mountpoint cifs users,noauto,credentials=~/.credentials,iocharset=utf8,uid=1000,gid=1000 0 0

[themroc (rauchweihe)]

The solution from Daniel Muller adding a the trailing slash solve for me the umount problem too. Thanks

[Max-Ulrich Farber (maxulrichfarber)]

Adding a trailing slash is an easy workaround. But the bug should be fixed anyhow. Thanks.

[sultan (gerard-snoek)]

Same problem here with 10.10 64bit
Also can't find umount.cifs, only mount.cifs in the /sbin directory

[themroc (rauchweihe)]

[user:sultan] wrote:
Also can't find umount.cifs, only mount.cifs in the /sbin directory

But this is correct, see the 2nd Point in https://code.launchpad.net/~ubuntu-branches/ubuntu/maverick/cifs-utils/maverick for details: "* umount.cifs (and by extension, smbumount) no longer exists upstream,
   because mount.cifs no longer permits non-root users to mount except by
   way of the standard /etc/fstab arguments."

[FlekkeN (flekken)]

This affect me too. Im in Natty 11.04 and my fstab line:
//server/letoltesek /media/letoltesek cifs credentials=/etc/samba/credentials_flekken,noauto,users,_netdev,rw,iocharset=utf8 0 0
In this case there is an icons in nautilus panel but if i click on it and mount the fs another icon appears with the drive mounted and also an error appears:
Timeout waiting for mount to appear

if I write this:
//server/letoltesek/ /media/letoltesek cifs credentials=/etc/samba/credentials_flekken,noauto,users,_netdev,rw,iocharset=utf8 0 0
Same but with a trailing / no error, only 1 icon and no umount problem.
So that trailing / definetly a problem.