OpenLink Virtuoso is the first CROSS PLATFORM Universal Server to implement Web, File, and Database server functionality alongside Native XML Storage, and Universal Data Access Middleware, as a single server solution. OpenLink Virtuoso plays a vital role for semantic web programming, it can work as a solid SPARQL end point, which can be supported by almost all endpoint interfaces. There are following steps to install and start OpenLink Virtuoso universal server-
1. Install Dependencies
To install OpenLink Virtuoso first of all following dependencies are needed-
| Package | Version | From |
| autoconf | 2.57 | http://www.gnu.org/software/autoconf/ |
| automake | 1.9 | http://www.gnu.org/software/automake/ |
| libtool | 1.5.16 | http://www.gnu.org/software/libtool/ |
| flex | 2.5.33 | http://www.gnu.org/software/non-gnu/flex/ |
| bison | 2.3 | http://www.gnu.org/software/bison/ |
| gperf | 2.7.2 | http://www.gnu.org/software/gperf/ |
| gawk | 3.1.1 | http://www.gnu.org/software/gawk/ |
| m4 | 1.4.1 | http://www.gnu.org/software/m4/ |
| make | 3.79.1 | http://www.gnu.org/software/make/ |
| OpenSSL | 0.9.7i | http://www.openssl.org/ |
First of all check all the dependencies whether installed or not. (Version is important!)
To check the version use following sequence.
#autoconf –version
# automake –version
#libtoolize –version
#flex –version
#bison –version
#gperf –version
#gawk –version
#m4 –version
#make –version
#openssl version
During checking of the dependencies you will know whether they are installed or not and if not installed, for example, you will get something like-
The program ‘autoconf’ is currently not installed. You can install it by typing:
apt-get install autoconf
Then why should you wait!! install the packages using “apt-get” one by one in the sequence as checking the version.
2. run this command apt-get install libssl-dev from your terminal3. Download OpenLink Virtuoso from source forge (Link)4. Extract the package in any directory.5. Go to the directory where you have extracted the package.6. It is better to run autogen.sh by typing ./autogen.sh, which checks for the presence and right version of some of the required components, and if it reports any missing package then install that package.7. Set following environmental variable by typing (one by one) -CFLAGS=”-O2″
export CFLAGS8. type `./configure’ to configure the package for your system.9. Type `make’ to compile the package.10. Type `make install’ to install the programs and any data files and documentation.
1. Go to ‘cd /usr/local/virtuoso-opensource/var/lib/virtuoso/db’2. then type ‘/usr/local/virtuoso-opensource/bin/virtuoso-t -f &’
To grant the SPARQL to update and insert data into a graph-1. Go to “http://localhost:8890/conductor” and login as “dba” (Uname and Pass =” dba”)2. Click on “Interactive SQL (ISQL)”.3. In ISQL window type the commadGRANT ALL PRIVILEGES TO "SPARQL";
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