 |
 |
Java JDK Install on Unix 32-bit and 64-bit
For example, our SliceHost system is 64 bit, and we want to be able to run 32 bit programs.Before you begin
You may want to verify your Ubuntu /etc/apt/sources.list
You may want to remove Linux Java GCJ pacakage
To install Java via download from Sun
Go to java.sun.com
Download jdk-6u16-linux-x64.bin (or whichever version is most current for your particular system)
Put it in ~root/sources/ (or wherever you like)
Run it, which prompts you to approve the license, and unpacks Java.
Put it wherever you like e.g.:
$ mv jdk1.6.0_17 /opt/ $ cd /opt $ ln -s jdk1.6.0_17 jdk
To install Java via Debian packages
To install via ubuntu packages which may be slightly out of date:apt-get install sun-java6-bin ia32-sun-java6-bin
To choose between Java 32 bit and Java 64 bit
To choose:update-alternatives --config java
To verify that Java works
To verify:$ /opt/jdk/java -version java version "1.6.0_17" Java(TM) SE Runtime Environment (build 1.6.0_17-b04) Java HotSpot(TM) Client VM (build 14.3-b01, mixed mode, sharing)
To install Java JDK versions for 32 bit and 64 bit side-by-side
To put the two versions of Java in unique system directory names:
$ rm -rf jdk1.6.0_17
$ sh jdk-6u16-linux-i586.bin
$ mv jdk1.6.0_17 /opt/jdk1.6.0_17_i586
$ rm -rf jdk1.6.0_17
$ sh jdk-6u16-linux-x64.bin
$ mv jdk1.6.0_17 /opt/jdk1.6.0_17_x64
To create a symlink for convenience:
$ ln -s /opt/jdk1.6.0_17_i586 jdk
To add the JDK to your system path:
PATH=$PATH:/opt/jdk/bin/ export PATH
What's Next?
- Index Of Articles: Web Design & Development
- JRuby install
- Norsys Netica install Java API with JRuby
- Remove Linux Java GCJ package
- Ubuntu apt-get install ia32 for 32-bit on 64-bit
- Ubuntu /etc/apt/sources.list