Mounting a Windows Share in Linux

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Linux systems allow access to Windows and Samba file shares. cifs (formerly smbfs) is used for this purpose.

Mounting Shares using cifs

You can connect to a Windows share from the command line of a Linux system as shown below.

First you have to install the cifs-utils package. Use the following command under Ubuntu:

sudo apt-get install cifs-utils

The following example values will be used in this example:

  • IP address for the server:
  • Share name: freigabe
  • User name: testuser
  • Domain: testdomain

To mount the network share, use the following command and enter the password of the user:

admin@adminpc-ubuntu:~$ sudo mount -t cifs // /mnt -o user=testuser

Troubleshooting Disconnects

In the event of unintentional disconnects, it may be helpful to explicitly use a newer protocol version (e. g. vers=2.1). You will find information on this in a post on[1]


smbfs should not be used,[2] however you will find several pieces of information about it here for historical reasons:

An attempt to use smbfs will fail with the following message:

admin@adminpc-ubuntu:~$ sudo mount -t smbfs // /mnt -o username=testuser
mount: wrong fs type, bad option, bad superblock on //,
       missing codepage or helper program, or other error
       (for several filesystems (e.g. nfs, cifs) you might
       need a /sbin/mount.<type> helper program)
       In some cases useful info is found in syslog - try
       dmesg | tail  or so


The output from dmesg will appear in this case:

[18427.113492] smbfs is deprecated and will be removed from the 2.6.27 kernel. Please migrate to cifs
[18427.113499] smb_fill_super: missing data argument
[18539.255884] smbfs is deprecated and will be removed from the 2.6.27 kernel. Please migrate to cifs
[18539.255891] smbfs: mount_data version 1919251317 is not supported

So that smbfs can be used, the smbfs package will be required under Ubuntu.


  1. CIFS randomly losing connection to Windows share (, 29.05.2017)
  2. SambaClientGuide (

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