8000 Improved the documentation about the Brick installation process · ev3dev-lang-java/docs@058ac46 · GitHub
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Improved the documentation about the Brick installation process
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‎src/main/asciidoc/getting_started/brick.adoc

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@@ -100,7 +100,7 @@ Now, you have Linux in your Brick!
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## Java Virtual Machine
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Java programs need a JVM (Java Virtual Machine) installed in the Brick.
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Depending of the Hardware and the Debian version, you will have different options.
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Depending of the Hardware and the Debian version, you will have different options to install it.
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### EV3 Brick
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@@ -111,22 +111,38 @@ Available JVM:
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- Oracle JRE 8 for Debian Jessie
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- Open JDK 10 for Debian Stretch
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Using this project, the developer has 3 alternatives to install a JVM:
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- Manual
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- Using the project Installer
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- Using Gradle tasks from Template Project which interacts with Installer
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But not all alternatives are enabled for all cases.
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#### Debian Jessie
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##### Manual way
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##### Manual
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To install Oracle JRE 8 in the brick you need to download from [here](http://www.oracle.com/technetwork/java/embedded/downloads/javase/javaseemeddedev3-1982511.html)
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On Debian Jessie + EV3 Brick the JVM available to use is Oracle JRE 8.
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To install this JVM in the Brick you need to download from [here](http://www.oracle.com/technetwork/java/embedded/downloads/javase/javaseemeddedev3-1982511.html)
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and later, copy the file `ejdk-8-fcs-b132-linux-arm-sflt-03_mar_2014.tar.gz` to your brick using the command `scp`.
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Example:
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*Example:*
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```
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scp "./ejdk-8-fcs-b132-linux-arm-sflt-03_mar_2014.tar.gz" "robot@192.168.1.85:/home/robot"
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```
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Once, you have the file on the brick, you can continue the Java installation with the installer or do yourself manually.
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Once, you have the file on the Brick, you can continue the Java installation with the installer or do yourself manually.
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If you continue installing the JVM in a manual way, you will have to execute the following statements in a Terminal:
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https://github.com/ev3dev-lang-java/installer/master
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```
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sudo tar -zxvf "/home/robot/ejdk-8-fcs-b132-linux-arm-sflt-03_mar_2014.tar.gz" -C /opt
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sudo update-alternatives --install /usr/bin/java java /opt/ejdk1.8.0/linux_arm_sflt/jre/bin/java 8
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```
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Now, you have Java on your EV3 Brick
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##### Installer
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sudo ./installer.sh java
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```
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#### Manual way
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##### Gradle Template project
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This option is not available for Debian Jessie
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#### Debian Stretch
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In Debian Jessie, we could build OpenJDK 10 for EV3 so the Java installation experience is improved so much.
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##### Manual way
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```
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sudo tar -zxvf "/home/robot/ejdk-8-fcs-b132-linux-arm-sflt-03_mar_2014.tar.gz" -C /opt
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sudo update-alternatives --install /usr/bin/java java /opt/ejdk1.8.0/linux_arm_sflt/jre/bin/java 1
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wget -N https://github.com/ev3dev-lang-java/openjdk-ev3/releases/download/v0.5.0/jri10-ev3.tar.gz
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sudo tar -zxvf jri10-ev3.tar.gz -C /opt
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mv /opt/jri-ev3/ /opt/jri-10-build-050
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update-alternatives --install /usr/bin/java java /opt/jri-10-build-050/bin/java 10
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```
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Now, you have Java on your EV3 Brick
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##### Installer
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```
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cd /home/robot
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mkdir installer
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cd installer
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wget -N https://raw.githubusercontent.com/ev3dev-lang-java/installer/master/installer.sh
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chmod +x installer.sh
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sudo ./installer.sh help
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sudo ./installer.sh java
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```
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##### Gradle Template project
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Execute the Tasks:
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- getInstaller
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- installJava
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- javaVersion
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### BrickPi 3 / BrickPi+ / PiStorms
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Using the installer, it is possible to automate everything:
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Bricks using Raspberry Pi hardware has more CPU/Memory capacity and it is possible to install from Debian Packages.
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At the moment, the unique support is on Debian Jessie.
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#### Debian Jessie
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##### Manual
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https://github.com/ev3dev-lang-java/installer
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apt-key adv --recv-key --keyserver keyserver.ubuntu.com EEA14886
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echo "deb http://ppa.launchpad.net/webupd8team/java/ubuntu trusty main" | sudo tee -a /etc/apt/sources.list
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echo "deb-src http://ppa.launchpad.net/webupd8team/java/ubuntu trusty main" | sudo tee -a /etc/apt/sources.list
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sudo apt-get update
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sudo apt-get install oracle-java8-installer
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##### Installer
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```
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cd /home/robot
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sudo ./installer.sh
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```
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##### Gradle Template project
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This option is not available yet.
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### Test your installation
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Once you have your bricks with the JVM, test the installation is easy.
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java -version
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```
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Now, your Brick is ready to receive your Java programs.
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Now, your Brick is ready to run your Java programs.
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++++
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