{"id":12112,"date":"2021-08-24T11:07:34","date_gmt":"2021-08-24T06:07:34","guid":{"rendered":"https:\/\/alexeyka.zantsev.com\/?p=12112"},"modified":"2021-08-31T11:59:49","modified_gmt":"2021-08-31T06:59:49","slug":"removing-old-unused-kernels-in-centos","status":"publish","type":"post","link":"https:\/\/alexeyka.zantsev.com\/?p=12112","title":{"rendered":"CentOS: remove old\/unused kernels"},"content":{"rendered":"\n<p>Install &#8216;yum-utils&#8217; package.<\/p>\n\n\n\n<p>Before:<\/p>\n\n\n\n<p class=\"has-text-color\" style=\"color:#611605\"><kbd><span style=\"color:#9d2f0b\" class=\"has-inline-color\">voip ~ # uname -sr<\/span><br><span style=\"color:#9d2f0b\" class=\"has-inline-color\">Linux 3.10.0-327.36.2.el7.x86_64<br>voip ~ # rpm -q kernel<br>kernel-3.10.0-327.el7.x86_64<br>kernel-3.10.0-327.10.1.el7.x86_64<br>kernel-3.10.0-327.18.2.el7.x86_64<br>kernel-3.10.0-327.36.2.el7.x86_64<\/span><\/kbd><\/p>\n\n\n\n<p><kbd><br><span style=\"color:#9d2f0b\" class=\"has-inline-color\">voip ~ # df -h | grep boot<br>\/dev\/md126p1 283M 212M 52M 81% \/boot<\/span><\/kbd><\/p>\n\n\n\n<p>Let&#8217;s leave 2 kernels, others will be removed. Use &#8216;package-cleanup&#8217; tool:<\/p>\n\n\n\n<p><kbd><span style=\"color:#9d2f0b\" class=\"has-inline-color\">voip ~ # package-cleanup --oldkernels --count=2<br>...<\/span><br><\/kbd><\/p>\n\n\n\n<p>Result:<\/p>\n\n\n\n<p><kbd><span style=\"color:#9d2f0b\" class=\"has-inline-color\">voip ~ # uname -sr<br>Linux 3.10.0-327.36.2.el7.x86_64<br>voip ~ # rpm -q kernel<br>kernel-3.10.0-327.18.2.el7.x86_64<br>kernel-3.10.0-327.36.2.el7.x86_64<\/span><\/kbd><\/p>\n\n\n\n<p><br><kbd>v<span style=\"color:#9d2f0b\" class=\"has-inline-color\">oip ~ # df -h | grep boot<br>\/dev\/md126p1 283M 127M 138M 48% \/boot<\/span><\/kbd><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Install &#8216;yum-utils&#8217; package. Before: voip ~ # uname -srLinux 3.10.0-327.36.2.el7.x86_64voip ~ # rpm -q kernelkernel-3.10.0-327.el7.x86_64kernel-3.10.0-327.10.1.el7.x86_64kernel-3.10.0-327.18.2.el7.x86_64kernel-3.10.0-327.36.2.el7.x86_64 voip ~ # df -h | grep boot\/dev\/md126p1 283M 212M 52M 81% \/boot Let&#8217;s leave 2 kernels, others will be removed. Use &#8216;package-cleanup&#8217; tool: voip ~ # package-cleanup &#8211;oldkernels &#8211;count=2&#8230; Result: voip ~ # uname -srLinux 3.10.0-327.36.2.el7.x86_64voip ~ # rpm [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[270,269,268],"class_list":["post-12112","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-centos","tag-kernel","tag-rpm"],"_links":{"self":[{"href":"https:\/\/alexeyka.zantsev.com\/index.php?rest_route=\/wp\/v2\/posts\/12112","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/alexeyka.zantsev.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/alexeyka.zantsev.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/alexeyka.zantsev.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/alexeyka.zantsev.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=12112"}],"version-history":[{"count":9,"href":"https:\/\/alexeyka.zantsev.com\/index.php?rest_route=\/wp\/v2\/posts\/12112\/revisions"}],"predecessor-version":[{"id":12130,"href":"https:\/\/alexeyka.zantsev.com\/index.php?rest_route=\/wp\/v2\/posts\/12112\/revisions\/12130"}],"wp:attachment":[{"href":"https:\/\/alexeyka.zantsev.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12112"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/alexeyka.zantsev.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12112"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/alexeyka.zantsev.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}