{"id":405,"date":"2024-11-21T05:10:51","date_gmt":"2024-11-21T05:10:51","guid":{"rendered":"http:\/\/77interactive.com\/?p=405"},"modified":"2025-08-13T04:30:30","modified_gmt":"2025-08-13T04:30:30","slug":"enable-crb-and-epel-in-oracle-linux","status":"publish","type":"post","link":"http:\/\/77interactive.com\/?p=405","title":{"rendered":"Enable CRB and EPEL in Oracle Linux"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Installing EPEL and the Code Ready Builder on Oracle Linux 8 \/ Oracle Linux 9<\/h2>\n\n\n\n<p>After working with Oracle Linux for a while, I had to install EPEL and the Code Ready Builder for a few utilities. This is where I learned that Oracle Linux is slightly different than Rocky Linux, Alma Linux, RHEL. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Package Naming Conventions<\/h3>\n\n\n\n<p>The first thing you will notice is that the EPEL and Code Ready Builder are named slightly different than the standard packages. In Oracle Linux, you will find that EPEL and Code Ready Builder are prefixed by either ol8 or ol9. This is based on the installed Oracle Linux version. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\">View Available Repositories<\/h3>\n\n\n\n<p>First we will view available repositories on your installation.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># View available repositories\nsudo dnf repolist<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/packages_fresh_install.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"233\" src=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/packages_fresh_install-1024x233.png\" alt=\"\" class=\"wp-image-428\" srcset=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/packages_fresh_install-1024x233.png 1024w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/packages_fresh_install-300x68.png 300w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/packages_fresh_install-768x175.png 768w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/packages_fresh_install.png 1175w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Verify Available Repos<\/h3>\n\n\n\n<p>On a fresh install of Oracle Linux, the required repos should exist in the directory<strong> \/etc\/yum.repos.d\/<\/strong><\/p>\n\n\n\n<p>Navigate to<strong> \/etc\/yum.repos.d\/ <\/strong>and see what repos are available.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/default_repos.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"203\" src=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/default_repos-1024x203.png\" alt=\"\" class=\"wp-image-430\" srcset=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/default_repos-1024x203.png 1024w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/default_repos-300x59.png 300w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/default_repos-768x152.png 768w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/default_repos.png 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<p>The EPEL packages are in the file <strong>oracle-epel-ol9.repo<\/strong><\/p>\n\n\n\n<p>The Code Ready Builder packages are in the file <strong>oracle-linux-ol9.repo<\/strong>. <\/p>\n\n\n\n<p>The image below shows a snippet from oracle-linux-ol9.repo, showing the Code Ready Builder section.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/code_ready_builder.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"433\" src=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/code_ready_builder-1024x433.png\" alt=\"\" class=\"wp-image-431\" srcset=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/code_ready_builder-1024x433.png 1024w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/code_ready_builder-300x127.png 300w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/code_ready_builder-768x325.png 768w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/code_ready_builder.png 1090w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Other Notes<\/h4>\n\n\n\n<p>You will also notice some place holders in the URIs. These placeholders point to resources in Oracle Cloud. You can examine the values in the directory <strong>\/etc\/yum\/vars\/<\/strong>. The place holders are for the current instance&#8217;s domain, and region, such <strong>us-phoenix-1<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Enable and Install EPEL and Code Ready Builder<\/h2>\n\n\n\n<p>If the EPEL and the Code Ready builder are completely unavailable, you can enable and install the packages one at a time. <\/p>\n\n\n\n<p>The example below is a fresh install with neither EPEL nor the Code Ready Builder available.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/missing_epel_crb.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"183\" src=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/missing_epel_crb-1024x183.png\" alt=\"\" class=\"wp-image-475\" srcset=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/missing_epel_crb-1024x183.png 1024w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/missing_epel_crb-300x54.png 300w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/missing_epel_crb-768x137.png 768w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/missing_epel_crb.png 1078w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<p>In this case we will enable EPEL and the CodeReady Builder one at a time.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Enable CodeReady Builder<\/h3>\n\n\n\n<p>To enable the code ready builder package navigate to the <strong>\/etc\/yum.repos.d\/<\/strong> folder.<br>With <strong>sudo<\/strong> rights, open the <strong>oracle-linux-ol9.repo<\/strong> file<br>Navigate to the <strong>[ol9_codeready_builder]<\/strong> section.<br>Change the <strong>enabled <\/strong>value from 0 to 1.<br>Save the file and exit <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/enable_crb_repo.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"220\" src=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/enable_crb_repo-1024x220.png\" alt=\"\" class=\"wp-image-474\" srcset=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/enable_crb_repo-1024x220.png 1024w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/enable_crb_repo-300x64.png 300w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/enable_crb_repo-768x165.png 768w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/enable_crb_repo.png 1048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<p>You can verify and see that the Code Ready Builder is now enabled.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/repo_list_1.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"215\" src=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/repo_list_1-1024x215.png\" alt=\"\" class=\"wp-image-477\" srcset=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/repo_list_1-1024x215.png 1024w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/repo_list_1-300x63.png 300w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/repo_list_1-768x161.png 768w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/repo_list_1.png 1106w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Install and Enable EPEL<\/h3>\n\n\n\n<p>If the EPEL package are not present, you can download and install the packages from Oracle.<br>Once installed, we can enable EPEL using the commands above.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Download EPEL Packages<\/h4>\n\n\n\n<p>If the Oracle Linux 8\/9 EPEL packages are not available, we will download and install them.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># Install the EPEL and CRB packages on Oracle Linux 9\nsudo dnf install oracle-epel-release-el9.x86_64 -y<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code># Install the EPEL and CRB packages on Oracle Linux 8\nsudo dnf install oracle-epel-release-el8.x86_64 -y<\/code><\/pre>\n\n\n\n<p>After a few moments, the EPEL package will be succesfully installed.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/EPEL_Install.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"508\" src=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/EPEL_Install-1024x508.png\" alt=\"\" class=\"wp-image-478\" srcset=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/EPEL_Install-1024x508.png 1024w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/EPEL_Install-300x149.png 300w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/EPEL_Install-768x381.png 768w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/EPEL_Install.png 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Verify Available Repositories<\/h3>\n\n\n\n<p>Once the EPEL and Code Ready Builder packages are enabled, run the <strong>repolist <\/strong>command again.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># View available repositories\nsudo dnf repolist<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/repos_enabled.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"303\" src=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/repos_enabled-1024x303.png\" alt=\"\" class=\"wp-image-432\" srcset=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/repos_enabled-1024x303.png 1024w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/repos_enabled-300x89.png 300w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/repos_enabled-768x227.png 768w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/repos_enabled-1280x380.png 1280w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/repos_enabled.png 1285w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<p>You will see the EPEL and Code Ready Builder are ready for use.<\/p>\n\n\n\n<p><strong>Note: <\/strong> The Code Ready Builder is listed as &#8220;Unsupported.&#8221; This is expected.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Enabling the Repositories<\/h2>\n\n\n\n<p>Next, we will enable the repos, one at a time. <\/p>\n\n\n\n<p><strong>Note:<\/strong> Enabling EPEL and the CodeReady Builder<strong><span style=\"text-decoration: underline;\"> does not display<\/span><\/strong> confirmation message. <\/p>\n\n\n\n<p>The first example is for Oracle Linux 9.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># Enable EPEL and the Code Ready Builder on Oracle Linux 9\nsudo dnf config-manager --set-enabled ol9_codeready_builder\nsudo dnf config-manager --set-enabled ol9_developer_EPEL <\/code><\/pre>\n\n\n\n<p>This example is for Oracle Linux 8. As you can see, only the version number changes in the command<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># Enable EPEL and the Code Ready Builder on Oracle Linux 8\nsudo dnf config-manager --set-enabled ol8_codeready_builder\nsudo dnf config-manager --set-enabled ol8_developer_EPEL <\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Verify Installation<\/h2>\n\n\n\n<p>Once installed and enabled, you can verify using dnf.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># Verify EPEL and CRB installation\nsudo dnf list available | egrep \"codeready|EPEL\"<\/code><\/pre>\n\n\n\n<p>You will see a list of the available packages. The image below represents a small sample, but you can see both EPEL and CodeReady builder packages listed.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/EPEL_CRB_Success.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"146\" src=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/EPEL_CRB_Success-1024x146.png\" alt=\"\" class=\"wp-image-479\" srcset=\"http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/EPEL_CRB_Success-1024x146.png 1024w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/EPEL_CRB_Success-300x43.png 300w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/EPEL_CRB_Success-768x110.png 768w, http:\/\/77interactive.com\/wp-content\/uploads\/2024\/11\/EPEL_CRB_Success.png 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">EPEL and CRB Source<\/h2>\n\n\n\n<p>The source for oracle Linux packages is found here, on the Oracle Yum repository. <\/p>\n\n\n\n<p><a href=\"https:\/\/yum.oracle.com\/repo\/OracleLinux\/OL8\/codeready\/builder\/x86_64\/index.html\">Code Ready Builder &#8211; Oracle Linux 8<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/yum.oracle.com\/repo\/OracleLinux\/OL9\/codeready\/builder\/x86_64\/index.html\">Code Ready Builder &#8211; Oracle Linux 9<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/yum.oracle.com\/repo\/OracleLinux\/OL8\/developer\/EPEL\/x86_64\/index.html\">EPEL &#8211; Oracle Linux 8<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/yum.oracle.com\/repo\/OracleLinux\/OL9\/developer\/EPEL\/x86_64\/index.html\">EPEL &#8211; Oracle Linux 9<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Links<\/h2>\n\n\n\n<p>Please see these other sites for additional information<\/p>\n\n\n\n<p><a href=\"https:\/\/docs.oracle.com\/en\/industries\/communications\/session-monitor\/5.1\/upgrade\/install-oracle-epel-repository.html\">https:\/\/docs.oracle.com\/en\/industries\/communications\/session-monitor\/5.1\/upgrade\/install-oracle-epel-repository.html<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/cloudspinx.com\/how-to-enable-epel-repository-on-oracle-linux\/\">https:\/\/cloudspinx.com\/how-to-enable-epel-repository-on-oracle-linux\/<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/unix.stackexchange.com\/questions\/759404\/how-to-yum-install-perlipcrun-on-oracle-linux-9\">https:\/\/unix.stackexchange.com\/questions\/759404\/how-to-yum-install-perlipcrun-on-oracle-linux-9<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Installing EPEL and the Code Ready Builder on Oracle Linux 8 \/ Oracle Linux 9 After working with Oracle Linux for a while, I had to install EPEL and the Code Ready Builder for a few utilities. This is where I learned that Oracle Linux is slightly different than Rocky Linux, Alma Linux, RHEL. Package [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":469,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[57],"tags":[58,53,54,42,52],"class_list":["post-405","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-linux","tag-codeready","tag-crb","tag-epel","tag-linux","tag-oracle"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Enable CRB and EPEL in Oracle Linux - 77 Interactive<\/title>\n<meta name=\"description\" content=\"Learn how to enable the EPEL repository and the Code Ready Builder in Oracle Linux.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/77interactive.com\/?p=405\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Enable CRB and EPEL in Oracle Linux - 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