How to Download and Install Red Hat Enterprise Linux 9
Red Hat Enterprise Linux (RHEL) is one of the most popular and widely used operating systems for enterprise applications and hybrid cloud environments. It provides a stable, secure, and reliable platform for developing, deploying, and managing workloads across physical, virtual, private and public cloud, and edge infrastructures. In this article, we will show you how to download and install RHEL 9, the latest version of RHEL that offers several new features and enhancements for developers and administrators.
What is Red Hat Enterprise Linux 9?
RHEL 9 is the next generation of Red Hat Enterprise Linux that was released in May 2022. It is based on Fedora 34 and Linux kernel 5.14. It supports AMD and Intel 64-bit architectures (x86-64-v2), the 64-bit ARM architecture (ARMv8.0-A), IBM Power Systems (POWER9), and 64-bit IBM Z (z14). It also provides compatibility with RHEL 8 through application streams that allow users to choose from multiple versions of user-space components.
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What are the benefits of using RHEL 9?
RHEL 9 provides several benefits for developers and administrators, such as:
Simplified automation and management: RHEL 9 comes with improved tools and features that make it easier to automate manual tasks, standardize deployments at scale, and simplify the day-to-day administration of systems. For example, RHEL web console, system roles, Ansible tooling, identity management, multilevel security (MLS), remote attestation, etc.
Enhanced security and compliance: RHEL 9 delivers a more secure operating system that meets the evolving security and compliance requirements of modern IT environments. For example, SELinux enhancements, OpenSSL 3.0 support, FIPS mode improvements, system-wide cryptographic policies, etc.
Improved container development: RHEL 9 enables developers to build and run containerized applications more efficiently and securely using Red Hat Universal Base Images (UBIs), Podman, Buildah, Skopeo, etc. It also supports container orchestration platforms such as OpenShift and Kubernetes.
Simplified experience for developers: RHEL 9 provides a streamlined developer experience that allows developers to access the latest language runtimes and tools through application streams. For example, Python 3.9, Node.js 16, PHP 8.0, Ruby 3.0, GCC 11.2.1, LLVM 13.0.1, Rust 1.58.1, Go 1.17.1, etc.
Built in the open and driven by collaboration: RHEL 9 is built with open source technologies and driven by collaboration with the Fedora community, upstream projects, customers, partners, and industry standards bodies. It also offers a transparent development process that allows users to provide feedback and contribute to the product roadmap.
How to download RHEL 9 for free as a developer?
If you are a developer who wants to try out RHEL 9 for free, you can download it as part of the Red Hat Developer program subscription. To do so, you need to create a developer account with . Take the following steps to download RHEL 9 for free as a developer:
Go to and click on the "Register" button at the top right corner of the page.
Fill in the required details and create your developer account. You will receive a verification email to activate your account.
Log in to your developer account and go to .
Select the "Red Hat Enterprise Linux 9" option and click on the "Download" button.
Choose the "Red Hat Enterprise Linux 9.0 Binary DVD" option and click on the "Download Now" button. You will need to accept the terms and conditions before downloading the ISO image file.
Save the ISO image file to your local drive. The file size is about 8.5 GB, so it may take some time depending on your internet speed.
Installation methods
There are different ways to install RHEL 9 on your system, such as using a DVD, a network boot, or a kickstart file. In this article, we will focus on the most common method, which is using a bootable USB thumb drive with the RHEL 9 ISO image. This method allows you to install RHEL 9 on any system that supports booting from a USB device.
How to create a bootable USB thumb drive with RHEL 9 ISO image?
To create a bootable USB thumb drive with RHEL 9 ISO image, you need a USB device with at least 16 GB of storage space and a tool that can write the ISO image to the USB device. There are various tools available for different operating systems, such as Rufus for Windows, UNetbootin for Linux and Mac OS, or Fedora Media Writer for all platforms. In this article, we will use Fedora Media Writer as an example. Here are the steps to create a bootable USB thumb drive with RHEL 9 ISO image using Fedora Media Writer:
Download Fedora Media Writer from and install it on your system.
Launch Fedora Media Writer and click on the "Custom Image" button at the bottom of the window.
Browse to the location where you saved the RHEL 9 ISO image file and select it.
Insert your USB device into your system and select it from the list of available devices. Make sure you have backed up any important data on your USB device before proceeding, as it will be erased during the process.
Click on the "Write to disk" button and wait for the process to complete. It may take several minutes depending on the speed of your USB device and your system.
Once done, you can safely eject your USB device from your system. You have successfully created a bootable USB thumb drive with RHEL 9 ISO image.
How to boot from the USB thumb drive and start the installation process?
To boot from the USB thumb drive and start the installation process, you need to change the boot order of your system to prioritize booting from a USB device. The exact steps may vary depending on your system model and BIOS settings, but generally you can access the BIOS menu by pressing a key such as F2, F10, F12, or Esc during the startup process. Once you are in the BIOS menu, look for an option that allows you to change the boot order or select a boot device. Choose your USB device as the first option and save the changes. Then exit the BIOS menu and restart your system. Your system should now boot from the USB thumb drive and display the RHEL 9 installation menu.
The RHEL 9 installation menu offers several options, such as:
Install Red Hat Enterprise Linux 9: This option starts the graphical installation wizard that guides you through the installation process step by step.
Test this media & install Red Hat Enterprise Linux 9: This option performs a media check before starting the installation wizard to verify that there are no errors or corruption in your USB device.
Troubleshooting: This option provides some tools and options for troubleshooting any issues that may occur during the installation process, such as rescue mode, memory test, etc.
In this article, we will choose the first option, which is Install Red Hat Enterprise Linux 9. After selecting this option, you will see a welcome screen that asks you to choose your language and keyboard layout. Make your selections and click on Continue. The next screen is the installation summary screen that shows you the main configuration options for your installation, such as:
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Date & Time: This option allows you to set the date, time, and time zone for your system.
Installation Destination: This option allows you to select the disk or partition where you want to install RHEL 9. You can also choose the storage configuration mode, such as automatic or custom.
Network & Host Name: This option allows you to configure the network settings and the host name for your system. You can also enable or disable network interfaces and configure IPv4 and IPv6 settings.
Security Policy: This option allows you to apply a security policy profile to your system based on the OpenSCAP standard. You can choose from predefined profiles or create your own custom profile.
Software Selection: This option allows you to select the software packages and groups that you want to install on your system. You can choose from predefined environments, such as Server, Workstation, Minimal Install, etc., or customize your own environment.
System Purpose: This option allows you to specify the intended purpose of your system, such as its role, usage type, service level agreement, etc. This information is used for subscription management and reporting purposes.
You can click on each option and make your choices according to your preferences and requirements. Once you are done with all the options, click on the Begin Installation button at the bottom right corner of the screen. The installation process will start and show you the progress and status of each step. Depending on your system specifications and network speed, the installation process may take some time to complete.
How to register and activate RHEL 9 subscription after installation?
After the installation process is completed, you will see a screen that asks you to reboot your system. Click on the Reboot button and wait for your system to restart. You will then see a screen that asks you to accept the license agreement and register your system with Red Hat Subscription Management (RHSM). RHSM is a service that provides software updates, security patches, support, and other benefits for RHEL users. To register and activate your RHEL 9 subscription after installation, follow these steps:
Click on the License Information option and accept the license agreement. Then click on Done.
Click on the Subscription Manager option and enter your developer account credentials that you used to download RHEL 9. Then click on Register.
Select the "Red Hat Developer Subscription" option from the list of available subscriptions and click on Attach.
Click on Done and then click on Finish Configuration at the bottom right corner of the screen.
You have successfully registered and activated your RHEL 9 subscription after installation. You can now log in to your system with the user name and password that you created during the installation process.
Features and comparison
RHEL 9 introduces several new features and enhancements that make it a more powerful, secure, and efficient operating system for enterprise applications and hybrid cloud environments. Some of these features and enhancements are:
Improved performance: RHEL 9 delivers better performance across various workloads, such as database, web, virtualization, containerization, etc., by leveraging new hardware capabilities and optimizations. For example, RHEL 9 supports hardware offloading for encryption and compression using Intel QuickAssist Technology (QAT), which reduces CPU overhead and improves throughput. It also supports hardware-assisted memory encryption using AMD Secure Memory Encryption (SME) and Secure Encrypted Virtualization (SEV), which enhances data protection and isolation.
Enhanced security: RHEL 9 provides a more secure operating system that meets the evolving security and compliance requirements of modern IT environments. For example, RHEL 9 supports OpenSSL 3.0, which is a major update of the open source cryptographic library that implements TLS/SSL protocols and provides various cryptographic algorithms. OpenSSL 3.0 introduces a new modular architecture that allows users to enable or disable specific algorithms or providers according to their needs. It also supports new algorithms such as EdDSA, X25519, X448, etc., which offer better security and performance than traditional algorithms. RHEL 9 also supports FIPS mode improvements, which allow users to enable FIPS mode at boot time or runtime without requiring a reboot or reinstallation of the system.
Simplified automation and management: RHEL 9 comes with improved tools and features that make it easier to automate manual tasks, standardize deployments at scale, and simplify the day-to-day administration of systems. For example, RHEL web console is a web-based interface that allows users to manage their systems remotely using a browser. It provides various functionalities such as monitoring system status, configuring network settings, managing users and groups, installing software updates, etc. RHEL web console also integrates with other tools such as Cockpit, which provides a graphical interface for managing containers and virtual machines, and Performance Co-Pilot (PCP), which provides a framework for collecting and analyzing performance metrics. RHEL 9 also supports system roles, which are Ansible modules that provide a consistent and easy way to configure and manage common system tasks. For example, there are system roles for network, firewall, SELinux, time synchronization, etc.
Improved container development: RHEL 9 enables developers to build and run containerized applications more efficiently and securely using Red Hat Universal Base Images (UBIs), Podman, Buildah, Skopeo, etc. UBIs are minimal and standard base images that are derived from RHEL and are freely redistributable. They provide a secure and reliable foundation for building containerized applications that can run on any platform that supports OCI-compliant containers. Podman is a tool that allows users to manage containers and pods without requiring a daemon or root privileges. It supports various features such as image management, container networking, volume management, health checks, etc. Buildah is a tool that allows users to create and modify container images using Dockerfile or scripts. It supports various features such as multi-stage builds, layer caching, image signing, etc. Skopeo is a tool that allows users to inspect, copy, and sync container images between different registries and storage types.
Simplified experience for developers: RHEL 9 provides a streamlined developer experience that allows developers to access the latest language runtimes and tools through application streams. Application streams are modular repositories that contain multiple versions of user-space components that can be installed and updated independently of the core operating system. For example, RHEL 9 offers application streams for Python 3.9, Node.js 16, PHP 8.0, Ruby 3.0, GCC 11.2.1, LLVM 13.0.1, Rust 1.58.1, Go 1.17.1, etc.
How does RHEL 9 compare to RHEL 8 in terms of performance, security, and compatibility? Here is a table that summarizes some of the key differences between RHEL 9 and RHEL 8:
Category
RHEL 9
RHEL 8
Kernel version
5.14
4.18
Supported architectures
x86-64-v2, ARMv8.0-A, POWER9, z14
x86-64-v2 (beta), ARMv8-A (beta), POWER8/9 (beta), z13/z14 (beta)
OpenSSL version
3.0
1.1.1
FIPS mode improvements
Yes
No
Hardware-assisted memory encryption
Yes (AMD SME/SEV)
No
Hardware offloading for encryption and compression
Yes (Intel QAT)
No
RHEL web console integration with Cockpit and PCP
Yes
No
System roles support
Yes
No
Red Hat Universal Base Images (UBIs)
Yes
No
Podman, Buildah, Skopeo support
Yes
No
Application streams support
Yes
No
Conclusion
In this article, we have shown you how to download and install RHEL 9, the latest version of Red Hat Enterprise Linux that offers several new features and enhancements for developers and administrators. We have also compared RHEL 9 to RHEL 8 in terms of performance, security, and compatibility. We hope you have found this article useful and informative. If you want to learn more about RHEL 9, you can visit the following links and resources:
FAQs
Here are some common questions and answers about RHEL 9:
Q: How long will RHEL 9 be supported?
A: RHEL 9 will be supported for 10 years from its general availability date, which is May 2022. This means that RHEL 9 will receive regular updates and security patches until May 2032. Additionally, RHEL 9 will offer extended life cycle support (ELS) for an additional three years, which means that it will receive critical security fixes until May 2035.
Q: How can I upgrade from RHEL 8 to RHEL 9?
A: You can upgrade from RHEL 8 to RHEL 9 using the Leapp tool, which is a command-line utility that automates the upgrade process. Leapp analyzes your system configuration and performs the necessary steps to upgrade your system to RHEL 9. You can find more information about Leapp and how to use it in the .
Q: How can I migrate from CentOS to RHEL 9?
A: You can migrate from CentOS to RHEL 9 using the Convert2RHEL tool, which is a command-line utility that converts your CentOS system to a RHEL system. Convert2RHEL replaces the CentOS packages with the corresponding RHEL packages and registers your system with RHSM. You can find more information about Convert2RHEL and how to use it in the .
Q: How can I get support for RHEL 9?
A: You can get support for RHEL 9 through various channels, such as:
The Red Hat Customer Portal, which provides access to documentation, knowledge base articles, case management, product downloads, etc.
The Red Hat Support Tool, which is a command-line utility that allows you to interact with the Red Hat Customer Portal from your terminal.
The Red Hat Developer program, which provides free access to tools, resources, and community support for developers.
The Red Hat Community forums, which are online platforms where you can ask questions, share ideas, and get help from other users and experts.
Q: How can I provide feedback or suggestions for RHEL 9?
A: You can provide feedback or suggestions for RHEL 9 through various channels, such as:
The Red Hat Bugzilla, which is a bug tracking system that allows you to report issues, request enhancements, or submit patches for RHEL products.
The Red Hat Customer Portal feedback form, which allows you to share your opinions and experiences with the Red Hat Customer Portal.
The Red Hat Idea Exchange, which is a platform where you can submit your ideas for improving Red Hat products and services.
The Fedora Project, which is the upstream community project that contributes to the development of RHEL. You can join the Fedora Project and participate in its mailing lists, forums, chat rooms, etc.
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