Garey,

Thank you so much for your help.

After checking the library paths you mentioned, I confirmed that I do not have 
libgeos in my system. So I downloaded the source code, compiled and put into 
the LD_LIBRARY_PATH.

Now gdalinfo works perfect. It displayed all the available formats.

However, my geoserver still does not see all the formats, I am using the 
following commands under my directory /work/geoserver-2.5.2/src/web/app:

mvn -DGEOSERVER_DATA_DIR=/terrain/data jetty:run

Everything starts good. In Geoserver's admin tool, I select the 
Data->Stores->Add new Stores,  the new formats types still would not show up 
under Raster Data Sources.

I even tried to copy again imageio-ext-gdal-bindings-1.9.2.jar from my download 
gdal_lib to my geoserver WEB-INF/lib.
I also have my environment GDAL_DATA set to the gdal_data directory

Any other suggestions that I can try?

Thanks again.




________________________________
From: gmi...@berkeley.edu [gmi...@berkeley.edu] on behalf of Garey Mills 
[gmi...@library.berkeley.edu]
Sent: Wednesday, September 10, 2014 12:38 PM
To: Zhang, Cindy
Cc: geoserver-users@lists.sourceforge.net
Subject: Re: [Geoserver-users] Why GDAL plugin not work for me

Cindy -

    I'm not an expert, but I have a working GDAL installation on a RHEL6 
machine. I just checked and I have libgeos_c.so in my library path. On Linux, 
the library path is set first the by the environment variable LD_LIBRARY_PATH 
and then by /etc/ld.so.conf. The directory containing libgeos_c.so(*) has to be 
named in on or other of those places.

You can get the Geos dist at http://trac.osgeo.org/geos/, though I have no idea 
which version is the correct one.

Garey Mills
Library Systems Office
UC Berkeley


On Wed, Sep 10, 2014 at 9:14 AM, Zhang, Cindy 
<xinfan.zh...@leidos.com<mailto:xinfan.zh...@leidos.com>> wrote:
Hi,

I am using GeoServer 2.5.2 and trying to install the GDAL plugin. Following the 
direction in http://docs.geoserver.org/latest/en/user/data/raster/gdal.html, I 
did not see any extension raster formats showing up.

My machine is CentOS release 6.3. My gcc is 4.4.6.

I tried to download gdal192-CentOS5.8-gcc4.1.2-x86_64.tar.gz or 
gdal192-Redhat6.0-gcc4.4.4-x86_64.tar.gz. Both gdalinfo script gave me message:

./gdalinfo: error while loading shared libraries: libgeos_c.so.1: cannot open 
shared object file: No such file or directory

Do I need to install libgeos_c? how and where?

Thanks.

Cindy

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