install java : extract the tar.gz to the dir
1.Change to the directory in which you want to install. Type: cd directory_path_name For example, to install the software in the /usr/java/ directory, Type: cd /usr/java/
2.Move the .tar.gz archive binary to the current directory. Unpack the tarball and install Java tar zxvf jre-8u73-linux-x64.tar.gz
3.The Java files are installed in a directory called jre1.8.0_73 in the current directory. In this example, it is installed in the /usr/java/jre1.8.0_73 directory. When the installation has completed, you will see the word Done. Delete the .tar.gz file if you want to save disk space.
CONFIGURE :
- Exit Firefox browser if it is already running.
2.Uninstall any previous installations of Java Plugin. Only one Java Plugin can be used at a time. When you want to use a different plugin, or version of a plugin, remove the symbolic links to any other versions and create a fresh symbolic link to the new one.
Remove the symbolic links (or move them to another directory) to javaplugin-oji.so and libnpjp2.so from the Firefox plugins directory.
3.Create a symbolic link to the Java Plugin in the Firefox plugins directory Go to the Firefox plugins directory cd ~/.mozilla/plugins Create the plugins directory if it does not exist. Create the symbolic link 32-bit plugin: ln -s Java installation directory/lib/i386/libnpjp2.so . 64-bit plugin: ln -s Java installation directory/lib/amd64/libnpjp2.so .
Example If the Java is installed at this directory: /usr/java/Java installation directory Then type in the terminal window to go to the browser plug-in directory: cd ~/.mozilla/plugins/ Enter the following command to create a symbolic link to the Java Plug-in for Firefox: ln -s /usr/java/Java installation directory/lib/i386/libnpjp2.so .
4.Start the Firefox browser or restart it if it is already up.
In Firefox, type about:plugins in the Location bar to confirm that the Java Plugin is loaded. You can also click the Tools menu to confirm that Java Console is there.
go to https://www.linuxnorth.org/minecraft/modded_linux.html#Step%203%20-%20Download%20Minecraft%20and%20Forge for help