Re: Cannot mount LANServer network storage device

[Steve French (smfltc)]

> Mounts OK from Windows XP and 2000.
Possibly because they don't do the Unix Extensions
(unless they are a very old lanman device in which case
smbfs has a few features which cifs does not have for such
extremely old devices).

> Can't mount from Linux
> $ ll /mnt/users_space
> ls: cannot open directory /mnt/users_space: Not a directory
>
> That is the target directory cannot be read!!
>
> I first tried this using smb4k with the same result.
>
> Often I get a failure of the mount command with
>
> mount error 20 = Not a directory

> I can mount the device using an old version of ubuntu using smbfs
> instead of cifs.  I can access files on the device using Nautilus in Fedora 7
> and 9 but this does mount it.
>
> Clearly cifs does not do everything that the previous samba client did.
It is probably the reverse - smbfs was not doing the current unix extensions (posix
extensions) to the protocol so did not run into some types of problems with buggy servers.
Linux cifs.ko can drop down to not using the Unix Extensions (as Windows does)
If "echo 0 > /proc/fs/LinuxExtensionsEnabled" before mount caused the mount to work or
equivalently specifying the "nounix" worked - that would imply a buggy server
implementation of the Unix Extensions.

Your kernel is running cifs version 1.50 (current is cifs 1.53) some missing
fixes include a fix when doing a second mount to the same server when the first mount
was disconnected (the second mount can fail in this case when it should automatically
reconnect instead).

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[Stephen Berryman]

Thanks Steve


The nounix flag did the trick.
Didn't find that option in the mount.cifs manual though.

Also noticed it is possible to mount a share multiple times on the same
mount point. It then appears multiple times when I do a df command and
must be umounted multiple times with root privileges.

This is not possible with NFS mounts for example.


thanks again




[stephenb@tru64 ~]$ mount /netdrive/steve_space/
[stephenb@tru64 ~]$ mount /netdrive/steve_space/
[stephenb@tru64 ~]$ mount /netdrive/steve_space/
[stephenb@tru64 ~]$ mount /netdrive/steve_space/
[stephenb@tru64 ~]$ df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sda7             20151884  13981936   5965544  71% /
tmpfs                   448968         0    448968   0% /dev/shm
/dev/sda6             20159916   4980928  15178988  25% /other/os1
/dev/sda9             35356816  24381692   9179060  73% /space
/dev/sda1              5106676   4803464    303212  95% /dos/acer
/dev/sda2             14944768  11177120   3767648  75% /dos/c
/dev/sda8             15343104   8115968   7227136  53% /dos/backup
p3000:/mnt/storage   898932736 144264192 709005312  17% /storage
//192.168.88.2/steve_space
                     245051808   1613184 243438624
1% /netdrive/steve_space
//192.168.88.2/steve_space
                     245051808   1613184 243438624
1% /netdrive/steve_space
//192.168.88.2/steve_space
                     245051808   1613184 243438624
1% /netdrive/steve_space
//192.168.88.2/steve_space
                     245051808   1613184 243438624
1% /netdrive/steve_space

$ umount /netdrive/steve_space/
umount: it seems /netdrive/steve_space is mounted multiple times





On Sat, 2008-06-14 at 17:55 -0500, Steve French (smfltc) wrote:

> > Mounts OK from Windows XP and 2000.
> Possibly because they don't do the Unix Extensions
> (unless they are a very old lanman device in which case
> smbfs has a few features which cifs does not have for such
> extremely old devices).
>
> > Can't mount from Linux
> > $ ll /mnt/users_space
> > ls: cannot open directory /mnt/users_space: Not a directory
> >
> > That is the target directory cannot be read!!
> >
> > I first tried this using smb4k with the same result.
> >
> > Often I get a failure of the mount command with
> >
> > mount error 20 = Not a directory
>
> > I can mount the device using an old version of ubuntu using smbfs
> > instead of cifs.  I can access files on the device using Nautilus in Fedora 7
> > and 9 but this does mount it.
> >
> > Clearly cifs does not do everything that the previous samba client did.
> It is probably the reverse - smbfs was not doing the current unix extensions (posix
> extensions) to the protocol so did not run into some types of problems with buggy servers.
> Linux cifs.ko can drop down to not using the Unix Extensions (as Windows does)
> If "echo 0 > /proc/fs/LinuxExtensionsEnabled" before mount caused the mount to work or
> equivalently specifying the "nounix" worked - that would imply a buggy server
> implementation of the Unix Extensions.
>
> Your kernel is running cifs version 1.50 (current is cifs 1.53) some missing
> fixes include a fix when doing a second mount to the same server when the first mount
> was disconnected (the second mount can fail in this case when it should automatically
> reconnect instead).
>

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