Cum instalez Java in BackTrack Linux

NOTE: Before installing Java make sure you kill Firefox.

root@bt:~# 

killall -9 /opt/firefox/firefox-bin

• Downloading Java.

We can download java using wget.

root@bt:~# 

wget http://javadl.sun.com/webapps/download/AutoDL?BundleId=52240 -O /tmp/java.bin

• Creating the directories and running the self extraction.

root@bt:~#  

mkdir -p /opt/java && cd /opt/java
root@bt:~# 

chmod +x /tmp/java.bin && /tmp/java.bin

• Final changes.

root@bt:~# 

update-alternatives --install /usr/bin/java java /opt/java/jre1.6.?_??/bin/java 1
root@bt:~# 

update-alternatives --set java /opt/java/jre1.6.?_??/bin/java

• Adding the plugin to Firefox.

root@bt:~#  

mkdir -p /usr/lib/mozilla/plugins/
root@bt:~#  

ln -sf /opt/java/jre1.6.?_??/lib/i386/libnpjp2.so /usr/lib/mozilla/plugins/
root@bt:~#  

export JAVA_HOME=”/opt/java/jre1.6.?_??/bin/java”

• Testing the plugin.

root@bt:~# firefox http://java.com/en/download/testjava.jsp