- 7 JRE Installation for Linux Platforms
- System Requirements
- JRE 8 Installation Instructions
- Installation Instruction Notation and Files
- Installation of the 64-bit JRE on Linux Platforms
- Installation of the 64-bit JRE on RPM-based Linux Platforms
- Installation of the 32-bit JRE on Linux Platforms
- Installation of the 32-bit JRE on RPM-based Linux Platforms
- Installation of Public Key on RPM-based Linux Platforms
- General Installation Notes
- Root Access
- Overwriting Files
- System Preferences
- JRE Self-Extracting Installation for Linux (64-bit)
- System Requirements
- Installation Instructions
- JRE RPM Installation for Linux (64-bit)
- System Requirements
- Installation Instructions
7 JRE Installation for Linux Platforms
This page describes JRE for Linux system requirements and gives installation instructions for several JRE-Linux combinations.
This page contains these topics:
See «JDK 8 and JRE 8 Installation Start Here» for general information about installing JDK 8 and JRE 8.
For information on enhancements to JDK 8 that relate to the installer, see «Installer Enhancements in JDK 8».
System Requirements
See http://www.oracle.com/technetwork/java/javase/certconfig-2095354.html for information about supported platforms, operating systems, and browsers.
On a 64-bit system, you can download either the 64-bit or the 32-bit version of the Java platform. However, if you are using a 32-bit browser and you want to use the plugin, then you need to install the 32-bit version of the Java platform. To determine which version of Firefox you are running, launch the application, and select the menu item Help -> About Mozilla Firefox. At the bottom of the window is a version string line that contains either «Linux i686» (32-bit) or «Linux x86_64» (64-bit). To setup the Java plugin, see «Manual Installation and Registration of Java Plugin for Linux».
JRE 8 Installation Instructions
This topic contains these topics:
Installation Instruction Notation and Files
For instructions containing the notation version , substitute the appropriate JRE update version number. For example, if you are installing update JRE 8 update release 2, the following string representing the name of the bundle:
Note that, as in the preceding example, the version number is sometimes preceded with the letter u , for example, 8u2 , and sometimes it is preceded with an underbar, for example, jre1.8.0_02 .
The following table lists the options and instructions for downloading the JRE 8 release for a Linux platform.
Download File and Instructions | Architecture | Who Can Install |
---|---|---|
jre-8u version -linux-x64.tar.gz «Installation of the 64-bit JRE on Linux Platforms» | 64-bit | anyone |
j re-8u version -linux-i586.tar.gz «Installation of the 32-bit JRE on Linux Platforms» | 32-bit | anyone |
jre-8u version -linux-x64.rpm «Installation of the 64-bit JRE on RPM-based Linux Platforms» | 64-bit RPM-based Linux | root |
jre-8u version -linux-i586.rpm «Installation of the 32-bit JRE on RPM-based Linux Platforms» | 32-bit RPM-based Linux | root |
JDK 7u6 and later releases include JavaFX SDK (version 2.2 or later). The JavaFX SDK and Runtime are installed and integrated into the standard JDK directory structure.
Installation of the 64-bit JRE on Linux Platforms
This procedure installs the Java Runtime Environment (JRE) for 64-bit Linux, using an archive binary file ( .tar.gz ).
These instructions use the following file:
Download the file.
Before the file can be downloaded, you must accept the license agreement. The archive binary can be installed by anyone (not only root users), in any location that you can write to. However, only the root user can install the JDK into the system location.
Change directory to the location where you would like the JDK to be installed, then move the .tar.gz archive binary to the current directory.
Unpack the tarball and install the JRE.
The Java Development Kit files are installed in a directory called jdk1.8.0_ version in the current directory.
Delete the .tar.gz file if you want to save disk space.
Installation of the 64-bit JRE on RPM-based Linux Platforms
This procedure installs the Java Runtime Environment (JRE) for 64-bit RPM-based Linux platforms, such as Red Hat and SuSE, using an RPM binary file ( .rpm ) in the system location. You must be root to perform this installation.
These instructions use the following file:
Download the file.
Before the file can be downloaded, you must accept the license agreement.
Become root by running su and entering the super-user password.
Uninstall any earlier installations of the JDK packages.
Install the package.
To upgrade a package:
Delete the .rpm file if you want to save disk space.
Exit the root shell.
There is no need to reboot.
Installation of the 32-bit JRE on Linux Platforms
This procedure installs the Java Runtime Environment (JRE) for 32-bit Linux, using an archive binary file ( .tar.gz ).
These instructions use the following file:
Download the file.
Before the file can be downloaded, you must accept the license agreement. The archive binary can be installed by anyone (not only root users), in any location that you can write to. However, only the root user can install the JRE into the system location.
Change directory to the location where you would like the JRE to be installed, then move the .tar.gz archive binary to the current directory.
Unpack the tarball and install the JRE.
The JRE files are installed in a directory called jre1.8.0_ version in the current directory.
Delete the .tar.gz file if you want to save disk space.
Installation of the 32-bit JRE on RPM-based Linux Platforms
This procedure installs the Java Runtime Environment (JRE) for 32-bit RPM-based Linux platforms, such as Red Hat and SuSE, using an RPM binary file ( .rpm ) in the system location. You must be root to perform this installation.
These instructions use the following file:
Download the file.
Before the file can be downloaded, you must accept the license agreement.
Become root by running su and entering the super-user password.
Uninstall any earlier installations of the JRE packages.
Install the package.
To upgrade a package:
Exit the root shell.
There is no need to reboot.
Delete the .rpm file if you want to save disk space.
Installation of Public Key on RPM-based Linux Platforms
Since JDK version 8, the JRE RPMs are signed with OL keys. Installation of these RPMs on Linux distributions other than OL gives a warning message indicating that security validation of the package fails. This indicates that the public key used to sign this RPM needs to be installed in the system. A sample warning message and the public key installation steps are as follows:
Sample Warning Message
Installation Steps
Download the key file from https://yum.oracle.com/RPM-GPG-KEY-oracle-ol7 using the following command:
Install the key using the following command:
sudo rpm —import RPM-GPG-KEY-oracle-ol7
Public key installation needs to be done only once. The key installation is persistent across reboots.
General Installation Notes
This topic describes general installation topics.
Root Access
Installing the software automatically creates a directory called jre1.8.0_ version . Note that if you choose to install the Java SE Runtime Environment into system-wide location such as /usr/jre , you must first become root to gain the necessary permissions. If you do not have root access, simply install the Java SE Runtime Environment into your home directory, or a subdirectory that you have permission to write to.
Overwriting Files
If you install the software in a directory that contains a subdirectory named jre 1.8.0_ version , the new software overwrites files of the same name in that jre 1.8.0_ version directory. Rename the old directory if it contains files you want to keep.
System Preferences
By default, the installation script configures the system such that the backing store for system preferences is created inside the JRE’s installation directory. If the JRE is installed on a network-mounted drive, it and the system preferences can be exported for sharing with Java runtime environments on other machines.
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JRE Self-Extracting Installation for Linux (64-bit)
System Requirements
See supported System Configurations for information about supported platforms, operating systems, desktop managers, and browsers.
On a 64-bit system, you can download either the 64-bit or the 32-bit version of the Java platform. However, if you are using a 32-bit browser and you want to use the plugin, then you need to install the 32-bit version of the Java platform. To determine which version of Firefox you are running, launch the application, and select the menu item Help -> About Mozilla Firefox. At the bottom of the window is a version string line that contains either «Linux i686» (32-bit) or «Linux x86_64» (64-bit).
Installation Instructions
This procedure installs the Java SE Runtime Environment for 64-bit Linux, using a self-extracting binary file. For RPM-based Linux distributions, like Red Hat or SuSE, refer to the RPM installation instructions.
The name of the downloaded file has the following format:
To install, download this file and use the following instructions.
- Download and check the download file size.
You can download to any directory that you can write to.
This bundle can be installed by anyone (not only root users), in any location that the user can write to. However, only the root user can displace the system version of the Java platform supplied by Linux.
Make sure that execute permissions are set
Run this command:
% chmod +x jre-6u -linux-x64.bin
Change directory to the location where you would like the files to be installed.
The next step installs the Java SE Runtime Environment into the current directory.
Run the self-extracting binary.
Execute the downloaded file, prepended by the path to it. For example, if the file is in the current directory, prepend it with » ./ » (necessary if » . » is not in the PATH environment variable):
The binary code license is displayed, and you are prompted to agree to its terms.
The Java SE Runtime Environment files are installed in a directory called jre1.6.0_ in the current directory. Follow this link to see its directory structure.
Delete the bin file if you want to save disk space.
Note about Root Access: Installing the software automatically creates a directory called jre1.6.0_ . Note that if you choose to install the Java SE Runtime Environment into system-wide location such as /usr/local , you must first become root to gain the necessary permissions. If you do not have root access, simply install the Java SE Runtime Environment into your home directory, or a subdirectory that you have permission to write to.
Note about Overwriting Files: If you install the software in a directory that contains a subdirectory named jre1.6.0_ , the new software overwrites files of the same name in that jre1.6.0_ directory. Please be careful to rename the old directory if it contains files you would like to keep.
Note about System Preferences: By default, the installation script configures the system such that the backing store for system preferences is created inside the Java SE Runtime Environment’s installation directory. If the JRE is installed on a network-mounted drive, it and the system preferences can be exported for sharing with Java runtime environments on other machines.
See the Preferences API documentation for more information about preferences in the Java platform.
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JRE RPM Installation for Linux (64-bit)
System Requirements
See supported System Configurations for information about supported platforms, operating systems, desktop managers, and browsers.
On a 64-bit system, you can download either the 64-bit or the 32-bit version of the Java platform. However, if you are using a 32-bit browser and you want to use the plugin, then you need to install the 32-bit version of the Java platform. To determine which version of Firefox you are running, launch the application, and select the menu item Help -> About Mozilla Firefox. At the bottom of the window is a version string line that contains either «Linux i686» (32-bit) or «Linux x86_64» (64-bit).
Installation Instructions
This procedure installs the Java SE Runtime Environment for 64-bit Linux, using an RPM binary bundle. Some Linux distributions, such as Ubuntu, are not RPM-based. In that even, please see the self extracting installation page.
The name of the downloaded file has the following format:
To install, download this file and use the following instructions:
- Download and check the download file size.
You can download to any directory that you can write to.
Change directory to where the downloaded file is located and run these commands to first set the executable permissions and then run the binary to extract and run the RPM file:
Note that the initial » ./ » is required if you do not have » . » in your PATH environment variable.
The script displays a binary license agreement, which you are asked to agree to before installation can proceed. Once you have agreed to the license, the install script creates and runs the file jre-6u -linux-x64.rpm in the current directory.
NOTE — If instead you want to only extract the RPM file but not install it, you can run the .bin file with the -x argument. You do not need to be root to do this.
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