Once we have the installer in our local repository (as root):
chmod a+x jdk-6u21-linux-x64-rpm.bin
./jdk-6u21-linux-x64-rpm.bin
Once we have the installer in our local repository (as root):
chmod a+x jdk-6u21-linux-x64-rpm.bin
./jdk-6u21-linux-x64-rpm.bin
Next, we must add these two lines to the file: /etc/profile
JAVA_HOME=/usr/java/jdk1.6.0_21
pathmunge $JAVA_HOME/jre/bin after
At the end of the line that starts with export, we need to add this our JAVA_HOME variable, so the line should be like this:
export PATH USER LOGNAME MAIL HOSTNAME HISTSIZE INPUTRC JAVA_HOME
Then, we need to execute the next statements. Hint: Copy all the lines like if were just one.
export JAVA_HOME=/usr/java/jdk1.6.0_21
export JAVA_ALTERNATIVE_PRIORITY=16021
/usr/sbin/update-alternatives –install /usr/bin/java java $JAVA_HOME/bin/java $JAVA_ALTERNATIVE_PRIORITY
/usr/sbin/update-alternatives –install /usr/bin/javadoc javadoc $JAVA_HOME/bin/javadoc $JAVA_ALTERNATIVE_PRIORITY
/usr/sbin/update-alternatives –install /usr/bin/appletviewer appletviewer $JAVA_HOME/bin/appletviewer $JAVA_ALTERNATIVE_PRIORITY
/usr/sbin/update-alternatives –install /usr/bin/javah javah $JAVA_HOME/bin/javah $JAVA_ALTERNATIVE_PRIORITY
/usr/sbin/update-alternatives –install /usr/bin/javac javac $JAVA_HOME/bin/javac $JAVA_ALTERNATIVE_PRIORITY
/usr/sbin/update-alternatives –install /usr/bin/jar jar $JAVA_HOME/bin/jar $JAVA_ALTERNATIVE_PRIORITY
Then, we export the alternatives:
/usr/sbin/update-alternatives –auto java
/usr/sbin/update-alternatives –auto javadoc
/usr/sbin/update-alternatives –auto appletviewer
/usr/sbin/update-alternatives –auto javah
/usr/sbin/update-alternatives –auto javac
/usr/sbin/update-alternatives –auto jar
To confirm that our installation is successfull:
java -version
Should give us an ouptput like this:
[root@yourMachine]# java -version
java version “1.6.0_21”
Java(TM) SE Runtime Environment (build 1.6.0_21-b02)
Java HotSpot(TM) 64-Bit Server VM (build 16.3-b01, mixed mode)
That’s it. Enjoy.