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The full form of EPEL is Extra Packages for Enterprise Linux. As the name says, it’s a package repository for enterprise Linux distributions such as RHEL, AlmaLinux, Rocky Linux, CentOS Stream, and so on. The EPEL package repositories contain packages that are available on Fedora but are not available on RHEL, CentOS Stream, and other RHEL-based Linux distributions (i.e. AlmaLinux, Rocky Linux). So, if you need to use any of the software packages that are available on Fedora Linux on RHEL, AlmaLinux, Rocky Linux, or CentOS Stream, you must enable the EPEL package repositories on your computer/server.In this article, we will show you how to install, enable, and use the EPEL repository on Red Hat Enterprise Linux (RHEL) 9, AlmaLinux 9, Rocky Linux 9, and CentOS Stream 9 Linux distributions. Topic of Contents: Installing the EPEL Repository on Red Hat Enterprise Linux (RHEL) 9 Installing the EPEL Repository on AlmaLinux 9 and Rocky Linux 9 Installing the EPEL Repository on CentOS Stream 9 Checking If the EPEL Package Repository Is Enabled on RHEL/AlmaLinux/Rocky Linux/CentOS Stream Listing All EPEL Repository Packages on RHEL/AlmaLinux/Rocky Linux/CentOS Stream 8 Searching for EPEL Repository Packages on RHEL/AlmaLinux/Rocky Linux/CentOS Stream Installing the Packages from the EPEL Repository on RHEL/AlmaLinux/Rocky Linux/CentOS Stream Listing the Installed Packages from the EPEL Repository on RHEL/AlmaLinux/Rocky Linux/CentOS Stream Disabling the EPEL Repository on RHEL 9 Disabling the EPEL Repository on AlmaLinux 9/Rocky Linux 9 Disabling the EPEL Repository on CentOS Stream 9 Enabling the EPEL Repository on RHEL 9 Enabling the EPEL Repository on AlmaLinux 9/Rocky Linux 9 Enabling the EPEL Repository on CentOS Stream 9 Uninstalling the EPEL Repository from RHEL 9/AlmaLinux 9/Rocky Linux 9 Uninstalling the EPEL Repository from CentOS Stream 9 Conclusion Installing the EPEL Repository on Red Hat Enterprise Linux (RHEL) 9 Some of the packages of the EPEL repository depend on the packages from the official RHEL 9 CodeReady-Builder repository. So, you must enable the RHEL 9 CodeReady-Builder repository before installing/enabling the EPEL repository on RHEL 9. To enable the RHEL 9 CodeReady-Builder repository, run the following command: $ sudo subscription-manager repos --enable codeready-builder-for-rhel-9-$(uname -i)-rpms The CodeReady-Builder repository should be enabled on your RHEL 9 system. To install and enable the EPEL repository on your RHEL 9 machine, run the following command: $ sudo dnf install https://dl.fedoraproject.org/pub/epel/epel-release-latest-9.noarch.rpm To confirm the installation, press “Y” and then press <Enter>. The EPEL repository should be installed and enabled on your RHEL 9 system. Installing the EPEL Repository on AlmaLinux 9 and Rocky Linux 9 Some of the packages of the EPEL repository depend on the packages from the official AlmaLinux 9/Rocky Linux 9 CRB repository. So, you must enable the CRB repository before installing/enabling the EPEL repository on AlmaLinux 9/Rocky Linux 9. To enable the CRB repository on AlmaLinux 9/Rocky Linux 9, run the following command: $ sudo dnf config-manager --set-enabled crb Update the DNF package database cache with the following command: $ sudo dnf makecache To install and enable the EPEL repository on AlmaLinux 9/Rocky Linux 9, run the following command: $ sudo dnf install epel-release To confirm the installation, press “Y” and then press <Enter>. You may be asked to accept the GPG key of the AlmaLinux/Rocky Linux 9 repository. To accept the GPG key, press “Y” and then press <Enter>. The EPEL repository should be installed and enabled on your AlmaLinux/Rocky Linux 9 system. Installing the EPEL Repository on CentOS Stream 9 Some of the packages of the EPEL repository depend on packages from the official CentOS Stream 9 CRB repository. So, you must enable the CRB repository before installing/enabling the EPEL repository on CentOS Stream 9. To enable the CRB repository on CentOS Stream 9, run the following command: $ sudo dnf config-manager --set-enabled crb Update the DNF package database cache with the following command: $ sudo dnf makecache To install and enable the EPEL repository on CentOS Stream 9, run the following command: $ sudo dnf install epel-release epel-next-release To confirm the installation, press “Y” and then press <Enter>. You may be asked to accept the GPG key of the CentOS Stream 9 repository. To accept the GPG key, press “Y” and then press <Enter>. The EPEL repository should be installed and enabled on your CentOS Stream 9 system. Checking If the EPEL Package Repository Is Enabled on RHEL/AlmaLinux/Rocky Linux/CentOS Stream To check whether the EPEL package repository is enabled on RHEL 9, AlmaLinux 9, Rocky Linux 9, or CentOS Stream 9, run the following command: $ sudo dnf repolist If the EPEL repository is enabled on RHEL 9, AlmaLinux 9, and Rocky Linux 9, you should see the “epel” and “epel-cisco-openh264” repositories in the list. If the EPEL repository is enabled on CentOS Stream 9, you should see the “epel”, “epel-next”, and “epel-cisco-openh264” repositories in the list. Listing All EPEL Repository Packages on RHEL/AlmaLinux/Rocky Linux/CentOS Stream To list all the EPEL repository packages on RHEL 9, AlmaLinux/Rocky Linux 9, and CentOS Stream 9, run the following command: $ sudo dnf --repo epel list available To list all the EPEL repository packages starting with the “php” name (let’s say) on RHEL 9, AlmaLinux/Rocky Linux 9, and CentOS Stream 9, run the following command: $ sudo dnf --repo epel list available php* In the same way, you can list all the “epel-cisco-openh264” repository packages on RHEL 9, AlmaLinux/Rocky Linux 9, and CentOS Stream 9 with the following command: $ sudo dnf --repo epel-cisco-openh264 list available If you’re using the CentOS 9 Stream, you can also list all the “epel-next” repository packages with the following command: $ sudo dnf --repo epel-next list available Searching for the EPEL Repository Packages on RHEL/AlmaLinux/Rocky Linux/CentOS Stream To search for the EPEL repository packages only on RHEL 9 and AlmaLinux/Rocky Linux 9, run the following command: $ sudo dnf --repo epel --repo epel-cisco-openh264 search composer To search for EPEL repository packages only on CentOS Stream 9, run the following command: $ sudo dnf --repo epel --repo epel-cisco-openh264 --repo epel-next search node Installing the Packages from the EPEL Repository on RHEL/AlmaLinux/Rocky Linux/CentOS Stream You can install the packages from the EPEL repositories on RHEL 9, AlmaLinux/Rocky Linux 9, and CentOS Stream 9 with the usual “dnf install” command. For example, to install the “nodejs-devel” from the “epel” repository along with all the dependencies, run the following command: $ sudo dnf install nodejs-devel To confirm the installation, press “Y” and then press <Enter>. The EPEL repository package and its dependencies are being downloaded and installed on your computer/server. It takes a while to complete. You may be asked to accept the GPG key of the EPEL repository. Just press “Y” and then press <Enter> to continue. Your desired EPEL repository package should be installed. Listing the Installed Packages from the EPEL Repository on RHEL/AlmaLinux/Rocky Linux/CentOS Stream To list all the installed EPEL repository packages, run the following command: $ sudo dnf list installed | grep @epel As you can see, the “nodejs-devel” package that we installed from the EPEL repository in the earlier section is displayed. Disabling the EPEL Repository on RHEL 9 To disable the EPEL repositories (“epel” and “epel-cisco-openh264”) on RHEL 9, run the following commands: $ sudo dnf config-manager --set-disabled epel $ sudo dnf config-manager --set-disabled epel-cisco-openh264 Optionally, you can disable the “CodeReady-Builder” repository on RHEL 9 with the following command: $ sudo subscription-manager repos --disable codeready-builder-for-rhel-9-$(uname -i)-rpms The EPEL repositories and CodeReady-Builder repository should be disabled on your RHEL 9 system. $ sudo dnf repolist Disabling the EPEL Repository on AlmaLinux 9/Rocky Linux 9 To disable the EPEL repositories (“epel” and “epel-cisco-openh264”) on AlmaLinux/Rocky Linux 9, run the following commands: $ sudo dnf config-manager --set-disabled epel $ sudo dnf config-manager --set-disabled epel-cisco-openh264 Optionally, you can disable the CRB repository on AlmaLinux/Rocky Linux 9 with the following command: $ sudo dnf config-manager --set-disabled crb The EPEL repositories and CRB repository should be disabled on your AlmaLinux/Rocky Linux 9 system. $ sudo dnf repolist Disabling the EPEL Repository on CentOS Stream 9 To disable the EPEL repositories (“epel”, “epel-next”, and “epel-cisco-openh264”) on CentOS Stream 9, run the following commands: $ sudo dnf config-manager --set-disabled epel $ sudo dnf config-manager --set-disabled epel-next $ sudo dnf config-manager --set-disabled epel-cisco-openh264 Optionally, you can disable the CRB repository on CentOS Stream 9 with the following command: $ sudo dnf config-manager --set-disabled crb The EPEL repositories and CRB repository should be disabled on your CentOS Stream 9 system. $ sudo dnf repolist Enabling the EPEL Repository on RHEL 9 To re-enable the EPEL repositories on RHEL 9, enable the CodeReady-Builder repository first with the following command: $ sudo subscription-manager repos --enable codeready-builder-for-rhel-9-$(uname -i)-rpms To re-enable the EPEL repositories (“epel” and “epel-cisco-openh264”) on RHEL 9, run the following commands: $ sudo dnf config-manager --set-enabled epel $ sudo dnf config-manager --set-enabled epel-cisco-openh264 The EPEL repositories and CodeReady-Builder repository should be enabled on your RHEL 9 system. $ sudo dnf repolist Enabling the EPEL Repository on AlmaLinux 9/Rocky Linux 9 To re-enable the EPEL repositories on AlmaLinux/Rocky Linux 9, enable the CRB repository first with the following command: $ sudo dnf config-manager --set-enabled crb To re-enable the EPEL repositories (“epel” and “epel-cisco-openh264”) on RHEL 9, run the following commands: $ sudo dnf config-manager --set-enabled epel $ sudo dnf config-manager --set-enabled epel-cisco-openh264 The EPEL repositories and CRB repository should be enabled on your AlmaLinux/Rocky Linux 9 system. $ sudo dnf repolist Enabling the EPEL Repository on CentOS Stream 9 To re-enable the EPEL repositories on CentOS Stream 9, enable the CRB repository first with the following command: $ sudo dnf config-manager --set-enabled crb To re-enable the EPEL repositories (epel, epel-next, and epel-cisco-openh264) on CentOS Stream 9, run the following commands: $ sudo dnf config-manager --set-enabled epel $ sudo dnf config-manager --set-enabled epel-next $ sudo dnf config-manager --set-enabled epel-cisco-openh264 The EPEL repositories and CRB repository should be enabled on your CentOS Stream 9 system. $ sudo dnf repolist Uninstalling the EPEL Repository from RHEL 9/AlmaLinux 9/Rocky Linux 9 To remove the EPEL repositories completely from RHEL 9 or AlmaLinux/Rocky Linux 9, run the following command: $ sudo dnf remove epel-release To confirm the uninstallation, press “Y” and then press <Enter>. The EPEL repositories should be removed from your RHEL 9 or AlmaLinux/Rocky Linux 9 system. Uninstalling the EPEL Repository from CentOS Stream 9 To remove the EPEL repositories completely from CentOS Stream 9, run the following command: $ sudo dnf remove epel-release epel-next-release To confirm the uninstallation, press “Y” and then press <Enter>. The EPEL repositories should be removed from your CentOS Stream 9 system. Conclusion In this article, we showed you how to install and enable the EPEL repositories on RHEL 9, AlmaLinux 9, Rocky Linux 9, and CentOS Stream 9. We also showed you how to check if the EPEL repositories are enabled, list the EPEL repository packages, search for EPEL repository packages, and install the EPEL repository packages on RHEL 9, AlmaLinux 9, Rocky Linux 9, and CentOS Stream 9. We showed you how to list the installed packages from the EPEL repositories as well. Finally, we showed you how to disable the EPEL repositories, re-enable the EPEL repositories, and uninstall the EPEL repositories completely from RHEL 9, AlmaLinux 9, Rocky Linux 9, and CentOS Stream 9. View the full article

The post How to Install EPEL Repository in RHEL 9 Linux first appeared on Tecmint: Linux Howtos, Tutorials & Guides .Installing the EPEL repository is one of the most recommended steps after you install RHEL 9. To make things easy for you, we are not just going to show you installation steps but rather The post How to Install EPEL Repository in RHEL 9 Linux first appeared on Tecmint: Linux Howtos, Tutorials & Guides.View the full article