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How to Download and Install Red Hat Enterprise Linux 8.6
Red Hat Enterprise Linux (RHEL) is one of the most popular and widely used enterprise Linux platforms in the world. It provides a stable, secure, and flexible foundation for running applications and workloads across physical, virtual, containerized, and cloud environments.
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In this article, you will learn what is new in Red Hat Enterprise Linux 8.6, the latest version of RHEL that was released in May 2022. You will also learn how to download and install RHEL 8.6 on your system.
What is Red Hat Enterprise Linux 8.6?
Red Hat Enterprise Linux 8.6 is the sixth minor release of RHEL 8, which was first launched in May 2019. RHEL 8 is based on Fedora 28 and the upstream Linux kernel 4.18.
RHEL 8.6 includes a wide range of new features and enhancements that aim to help organizations build a more efficient, reliable, and secure IT infrastructure. Some of the key benefits of RHEL 8.6 are:
It supports newer versions of language runtimes such as PHP 8.0 and Perl 5.32, which offer improved performance, security, and compatibility for web development.
It enables the creation and management of edge images, which are optimized for running RHEL on edge devices such as IoT gateways, routers, and switches.
It introduces new system roles, which are predefined Ansible playbooks that automate common configuration tasks for RHEL systems.
Let's take a closer look at some of these new features and enhancements in RHEL 8.6.
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What are the new features and enhancements in Red Hat Enterprise Linux 8.6?
Support for newer versions of language runtimes
RHEL 8.6 provides updated versions of two popular language runtimes: PHP 8.0 and Perl 5.32. These are available as Application Streams (AppStreams), which are modular software packages that can be installed and updated independently from the base operating system.
PHP 8.0 is the latest major release of the widely used scripting language for web development. It offers significant improvements in performance, security, and compatibility. Some of the new features in PHP 8.0 are:
JIT (Just In Time) compiler, which can boost the execution speed of PHP code by up to three times.
Named arguments, which allow passing arguments to functions by name instead of by position, making the code more readable and flexible.
Attributes, which are a form of metadata that can be added to classes, methods, properties, and parameters, enabling custom behaviors and annotations.
Union types, which allow specifying multiple types for a variable or a parameter, simplifying type checking and validation.
To install PHP 8.0 on RHEL 8.6, you can use the following command:
yum module install php:8.0
Perl 5.32 is the latest stable release of the general-purpose programming language that is widely used for text processing, system administration, and web development. It offers several bug fixes and enhancements over the previous version. Some of the changes in Perl 5.32 are:
The removal of the experimental status from several features such as subroutine signatures, bitwise operators, postderef syntax, and lexical subroutines.
The introduction of a new operator //=, which assigns a value to a variable only if it is undefined.
The addition of a new pragma use v5.32, which enables all the features that are available in Perl 5.32.
The improvement of Unicode support, especially for non-ASCII characters in identifiers and regular expressions.
To install Perl 5.32 on RHEL 8.6, you can use the following command:
yum module install perl:5.32
Red Hat Enterprise Linux for the edge
RHEL 8.6 introduces a new capability called Red Hat Enterprise Linux for the edge, which allows you to create and manage edge images that are optimized for running RHEL on edge devices such as IoT gateways, routers, and switches.
An edge image is a customized version of RHEL that contains only the essential packages and configurations for a specific use case or workload. It can be deployed and updated remotely using Red Hat Satellite or Red Hat Insights.
RHEL 8.6 supports automatic provisioning and onboarding for edge images, which means that you can register an edge device to a Red Hat service and download an edge image without any manual intervention.
To create an edge image on RHEL 8.6, you can use the following steps:
Install the composer-cli package, which provides a command-line interface for creating custom images.
Create a blueprint file that defines the packages and configurations for your edge image.
Use the composer-cli compose start-ostree command to start the image creation process.
Use the composer-cli compose image command to download the image file when it is ready.
Use the composer-cli compose metadata command to download the metadata file that contains information about the image.
<h Optionally, you can also download the installation guide and the release notes for RHEL 8.6 from the same page.
How to install Red Hat Enterprise Linux 8.6?
Once you have downloaded RHEL 8.6, you can install it on your system using the graphical installer, which is a user-friendly and interactive tool that guides you through the installation process.
In this section, you will learn how to perform a standard installation of RHEL 8.6 on a bare metal system using the ISO file that you downloaded in the previous section.
Before you install RHEL 8.6, you need to meet the following requirements:
You need to have a system that meets the minimum hardware requirements for RHEL 8.6, which are:
1 GHz or faster processor
2 GB or more of RAM
10 GB or more of available disk space
A DVD drive or a USB port for the installation media
An internet connection for software updates and registration
You need to have a Red Hat account that is associated with a valid Red Hat subscription or a free Red Hat Developer account. If you don't have one, you can create one .
You need to have access to the Red Hat Customer Portal using your Red Hat account credentials. If you don't have access, you can request it .
You need to have a blank DVD or a USB drive with at least 8 GB of capacity to create the installation media.
You need to have a tool to burn the ISO file to the DVD or the USB drive, such as for Linux.
To install RHEL 8.6 using the graphical installer, you can follow these steps:
Create the installation media by burning the ISO file to the DVD or the USB drive using your preferred tool.
Insert the installation media into your system and boot from it.
Select Install Red Hat Enterprise Linux 8.6 from the boot menu and press Enter.
Select your language and keyboard layout and click on Continue.
On the Installation Summary screen, configure the following options:
Date & Time: Set your time zone and date and time.
Installation Destination: Select your disk and partitioning scheme.
Network & Host Name: Enable and configure your network connection and host name.
Software Selection: Choose your base environment and additional package