Ubuntu Server 14.04 LTS for Azure does not come with Java pre-installed.
The server architecture is AMD64.
I know that you cannot install both the x64 and x86 JREs side-by-side, and I only need the x86 version (application requirements, memory requirements, etc).
Both the x86 and x64 versions of OpenJDK-7-JRE are available directly from Ubuntu here:
However, Ubuntu strongly recommends using a package manager (such as apt) to install the package, rather than downloading the binaries using a web-browser and manually copying to the destination machine.
Therefore, I've been trying to install from the command line, but I'm running into issues:
MyAdmin@Server01:~$ sudo apt-get install openjdk-7-jre:i386 Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package openjdk-7-jre MyAdmin@Server01:~$ The installation is successful if I omit the i386, but then I get the 64-bit JRE by default - which is not what I need.
I've confirmed that the source is already added in /etc/apt/sources.list
deb trusty-security main deb-src trusty-security main deb trusty-security universe deb-src trusty-security universe # deb trusty-security multiverse # deb-src trusty-security multiverse Is there another package, library, or repository that I need to install or update, before I can proceed with the apt installation of the OpenJDK x86 JRE?
1 Answer
It turns out I needed to explicitly add support for 32-bit architecture to the system.
openjdk-7-jre:i386 installed successfully after I did this:
sudo dpkg --add-architecture i386 sudo apt-get update sudo apt-get install openjdk-7-jre:i386 NOTE: ia32-libs and any other necessary prerequisites are automatically selected and installed when you install openjdk-7-jre:i386. There's no need to install ia32-libs manually, and it's best to install the automatically selected libraries to ensure you definitely get the right version etc.
