      datum shifting files installed, which will cause problems with the
      geographic admin because the ``null`` datum grid is not available for
      transforming geometries to the spherical mercator projection. A solution
      is to download the datum-shifting files, create the grid file, and
      install it yourself::
  
          $ wget http://download.osgeo.org/proj/proj-datumgrid-1.4.tar.gz
          $ mkdir nad
          $ cd nad
          $ tar xzf ../proj-datumgrid-1.4.tar.gz
 
</s> remove is very similar::
 </s> add is very similar:

.. code-block:: bash </s> remove * Create a symbolic link to these files::
 </s> add * Create a symbolic link to these files:

.. code-block:: bash </s> remove can be created (and started) with the following command::
 </s> add can be created (and started) with the following command:

.. code-block:: bash </s> remove the development tools necessary to build the rest of the requirements::
 </s> add the development tools necessary to build the rest of the requirements:

.. code-block:: bash </s> remove Use the synaptic package manager to install the following packages::
 </s> add Use the synaptic package manager to install the following packages:

.. code-block:: bash
    install it yourself:

    .. code-block:: bash
      datum shifting files installed, which will cause problems with the
      geographic admin because the ``null`` datum grid is not available for
      transforming geometries to the spherical mercator projection. A solution
      is to download the datum-shifting files, create the grid file, and
    install it yourself:

    .. code-block:: bash
  
          $ wget http://download.osgeo.org/proj/proj-datumgrid-1.4.tar.gz
          $ mkdir nad
          $ cd nad
          $ tar xzf ../proj-datumgrid-1.4.tar.gz
keep keep keep keep replace keep keep keep keep keep
 Fixed #17893 -- Added GeoDjango installation instructions for Ubuntu 11.10. Thanks jpaulett for the patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@17768 bcc190cf-cafb-0310-a4f2-bffc1f526a37 
docs/ref/contrib/gis/install.txt