1.3 Install the Yaz and Zebra packages
+Add Indexdata repository to your sources
+
+ $ sudo gedit /etc/apt/sources.list
+
+Add those lines at the end of the file
+
+# IndexData Repository
+deb http://ftp.indexdata.dk/pub/ubuntu/ jaunty main
+
+where jaunty is the name of your ubuntu version
+
+Save and quit
+
+Add Indexdata Key in order to be able to check signatures
+
+ $ cd ~
+ $ wget http://ftp.indexdata.dk/debian/indexdata.asc
+ $ sudo apt-key add indexdata.asc
+
+
Run the following command to update your system:
$ sudo apt-get update