{"id":7364,"date":"2019-01-08T10:12:55","date_gmt":"2019-01-08T10:12:55","guid":{"rendered":"https:\/\/www.appservgrid.com\/paw92\/?p=7364"},"modified":"2019-01-08T14:11:31","modified_gmt":"2019-01-08T14:11:31","slug":"how-to-downgrade-rhel-centos-to-previous-minor-release","status":"publish","type":"post","link":"https:\/\/www.appservgrid.com\/paw92\/index.php\/2019\/01\/08\/how-to-downgrade-rhel-centos-to-previous-minor-release\/","title":{"rendered":"How to Downgrade RHEL\/CentOS to Previous Minor Release"},"content":{"rendered":"<p>Have you\u00a0<a href=\"https:\/\/www.tecmint.com\/install-upgrade-kernel-version-in-centos-7\/\" target=\"_blank\" rel=\"noopener\">upgraded your kernel<\/a>\u00a0and\u00a0<strong>redhat-release<\/strong>\u00a0packages and you are encountering some issues. Do you want to downgrade to a lower minor release. In this article, we will describe how to do downgrade RHEL or CentOS version to previous minor version.<\/p>\n<p><strong>Note<\/strong>: The following steps will only work for downgrades within the same major version (such as from\u00a0<strong>RHEL\/CentOS 7.6 to 7.5<\/strong>) but not between major versions (such as from\u00a0<strong>RHEL\/CentOS 7.0 to 6.9<\/strong>).<\/p>\n<p>A minor version is a release of\u00a0<strong>RHEL<\/strong>\u00a0that does not (in most cases) add new features or content. It focuses on solving minor problems, typically bugs or security issues. Most of what makes a specific minor version is included in the kernel, so you will need to find out which kernels are supported as part of the minor version you are targeting.<\/p>\n<p>For the purpose of this article, we will show how to downgrade from\u00a0<strong>7.6 to 7.5<\/strong>. Before we proceed, note that the kernel version for\u00a0<strong>7.5<\/strong>\u00a0is\u00a0<strong>3.10.0-862<\/strong>. Got to\u00a0<a href=\"https:\/\/access.redhat.com\/site\/articles\/3078\" target=\"_blank\" rel=\"nofollow noopener\">Red Hat Enterprise Linux Release Dates<\/a>\u00a0for a complete list of minor releases and associated kernel versions.<\/p>\n<p>Let\u2019s check if the required kernel packages \u201c<strong>kernel-3.10.0-862<\/strong>\u201d is installed or not, using the following\u00a0<a href=\"https:\/\/www.tecmint.com\/20-linux-yum-yellowdog-updater-modified-commands-for-package-mangement\/\" target=\"_blank\" rel=\"noopener\">yum command<\/a>.<\/p>\n<pre> \r\n# yum list kernel-3.10.0-862*\r\n<\/pre>\n<div id=\"attachment_31484\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/list-desired-kernel-version-package.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31484\" src=\"https:\/\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/list-desired-kernel-version-package.png\" sizes=\"auto, (max-width: 822px) 100vw, 822px\" srcset=\"https:\/\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/list-desired-kernel-version-package.png 822w, https:\/\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/list-desired-kernel-version-package-768x197.png 768w\" alt=\"Check Kernel Version Package\" width=\"822\" height=\"211\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">Check Kernel Version Package<\/p>\n<\/div>\n<p>If the output of the previous command shows that the kernel package is not installed, you need to install it on the system.<\/p>\n<pre># yum install kernel-3.10.0-862.el7\r\n<\/pre>\n<p>Once the kernel installation is compete, to apply the changes, you need to reboot the system.<\/p>\n<p>Then downgrade the\u00a0<strong>redhat-release<\/strong>\u00a0package to complete the process. The command below targets the latest minor version that is lower than the current running one, such as from\u00a0<strong>7.6 to 7.5<\/strong>, or from\u00a0<strong>7.5 o 7.4<\/strong>.<\/p>\n<pre># yum downgrade redhat-release\r\n<\/pre>\n<p>Finally, confirm the downgrade by checking the contents of\u00a0<strong>\/etc\/redhat-release<\/strong>\u00a0using the\u00a0<a href=\"https:\/\/www.tecmint.com\/13-basic-cat-command-examples-in-linux\/\" target=\"_blank\" rel=\"noopener\">cat command<\/a>.<\/p>\n<pre># cat \/etc\/redhat-release\r\n<\/pre>\n<div id=\"attachment_31485\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/redhat-release-downgraded-to-lower-release.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31485\" src=\"https:\/\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/redhat-release-downgraded-to-lower-release.png\" alt=\"Check Release Version\" width=\"522\" height=\"59\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">Check Release Version<\/p>\n<\/div>\n<p>That\u2019s all! In this article, we have explained how to downgrade RHEL or CentOS distribution to a lower minor release. If you have any queries, use the feedback form below to reach us.<\/p>\n<p><a href=\"https:\/\/www.tecmint.com\/downgrade-rhel-centos-to-previous-minor-release\/\" target=\"_blank\" rel=\"noopener\">Source<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Have you\u00a0upgraded your kernel\u00a0and\u00a0redhat-release\u00a0packages and you are encountering some issues. Do you want to downgrade to a lower minor release. In this article, we will describe how to do downgrade RHEL or CentOS version to previous minor version. Note: The following steps will only work for downgrades within the same major version (such as from\u00a0RHEL\/CentOS &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.appservgrid.com\/paw92\/index.php\/2019\/01\/08\/how-to-downgrade-rhel-centos-to-previous-minor-release\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;How to Downgrade RHEL\/CentOS to Previous Minor Release&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-7364","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/posts\/7364","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/comments?post=7364"}],"version-history":[{"count":1,"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/posts\/7364\/revisions"}],"predecessor-version":[{"id":7671,"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/posts\/7364\/revisions\/7671"}],"wp:attachment":[{"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/media?parent=7364"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/categories?post=7364"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/tags?post=7364"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}