CentOS Install Sun Java SE JRE
By Minh • Sep 9th, 2009 • Category: Featured Linux, LinuxHere is how to install the Sun Java SE Runtime Environment (JRE) on CentOS 5.3.
First, Execute the Binary:
> mv jre-6u16-linux-x64.bin /usr/lib/java
> cd /usr/lib/java
> chmod 744 jre-6u16-linux-x64.bin
> ./jre-6u16-linux-x64.bin
Download the 32-bit or 64-bit non-RPM binary from Sun’s site here and execute it.
Next, Set Sun’s Java as Default:
> update-alternatives --install "/usr/bin/java" "java" "/usr/lib/java/jre1.6.0_16/bin/java" 1
> update-alternatives --set java /usr/lib/java/jre1.6.0_16/bin/java
We configure the system to use Sun’s Java binaries to execute “java” commands by telling it there is an alternate installation and to use it by default.
Finally, Check the Default Version:
> java -version
java version “1.6.0_16″
Java(TM) SE Runtime Environment (build 1.6.0_16-b01)
Java HotSpot(TM) 64-Bit Server VM (build 14.2-b01, mixed mode)

Minh is a technology junkie.
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Wow..very good…Nice blog and well updated…
Very nice guide. I have a problem with the following part.
[root@MattPC ~]# update-alternatives –set java /usr/lib/java/jre1.6.0_29/bin/java
/usr/lib/java/jre1.6.0_29/bin/java has not been configured as an alternative for java
Any ideas why this doesn’t work? I also still have the non SUN java as a default after this.
Thanks
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