{"id":6415,"date":"2019-08-29T06:44:57","date_gmt":"2019-08-29T06:44:57","guid":{"rendered":"https:\/\/www.devopsschool.com\/blog\/?p=6415"},"modified":"2021-11-16T10:54:25","modified_gmt":"2021-11-16T10:54:25","slug":"kubernetes-error-kubeadm-related-errors-and-solutions","status":"publish","type":"post","link":"https:\/\/www.devopsschool.com\/blog\/kubernetes-error-kubeadm-related-errors-and-solutions\/","title":{"rendered":"Kubernetes Error: kubeadm related errors and solutions"},"content":{"rendered":"\n<p><strong>Error 1<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-1\" data-shcb-language-name=\"PHP\" data-shcb-language-slug=\"php\"><span><code class=\"hljs language-php\">root@ubuntu-VirtualBox:~<span class=\"hljs-comment\"># kubeadm init<\/span>\n&#91;init] using Kubernetes version: v1<span class=\"hljs-number\">.12<\/span><span class=\"hljs-number\">.2<\/span>\n&#91;preflight] running pre-flight checks\n&#91;preflight] Some fatal errors occurred:\n        &#91;ERROR Swap]: running with swap on is not supported. Please disable swap\n&#91;preflight] <span class=\"hljs-keyword\">If<\/span> you know what you are doing, you can make a check non-fatal with `--ignore-preflight-errors=..<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-1\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PHP<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">php<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p><strong>Error 1<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-2\" data-shcb-language-name=\"PHP\" data-shcb-language-slug=\"php\"><span><code class=\"hljs language-php\">root@ubuntu-VirtualBox:~<span class=\"hljs-comment\"># kubeadm init<\/span>\n&#91;init] using Kubernetes version: v1<span class=\"hljs-number\">.12<\/span><span class=\"hljs-number\">.2<\/span>\n&#91;preflight] running pre-flight checks\n&#91;preflight] Some fatal errors occurred:\n        &#91;ERROR Swap]: running with swap on is not supported. Please disable swap\n&#91;preflight] <span class=\"hljs-keyword\">If<\/span> you know what you are doing, you can make a check non-fatal with `--ignore-preflight-errors=..<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-2\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PHP<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">php<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p><strong>Error 2<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-3\" data-shcb-language-name=\"PHP\" data-shcb-language-slug=\"php\"><span><code class=\"hljs language-php\">root@ubuntu-VirtualBox:~<span class=\"hljs-comment\"># kubeadm init<\/span>\n&#91;init] using Kubernetes version: v1<span class=\"hljs-number\">.12<\/span><span class=\"hljs-number\">.2<\/span>\n&#91;preflight] running pre-flight checks\n&#91;preflight] Some fatal errors occurred:\n        &#91;ERROR Swap]: running with swap on is not supported. Please disable swap\n&#91;preflight] <span class=\"hljs-keyword\">If<\/span> you know what you are doing, you can make a check non-fatal with `--ignore-preflight-errors=..<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-3\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PHP<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">php<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p><strong>Error 3<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-4\" data-shcb-language-name=\"PHP\" data-shcb-language-slug=\"php\"><span><code class=\"hljs language-php\">&#91;root@ip<span class=\"hljs-number\">-172<\/span><span class=\"hljs-number\">-31<\/span><span class=\"hljs-number\">-31<\/span><span class=\"hljs-number\">-11<\/span> ec2-user]<span class=\"hljs-comment\"># kubeadm init<\/span>\n&#91;init] Using Kubernetes version: v1<span class=\"hljs-number\">.13<\/span><span class=\"hljs-number\">.3<\/span>\n&#91;preflight] Running pre-flight checks\n        &#91;WARNING SystemVerification]: this Docker version is not on the <span class=\"hljs-keyword\">list<\/span> of validated versions: <span class=\"hljs-number\">18.09<\/span><span class=\"hljs-number\">.1<\/span>. Latest validated version: <span class=\"hljs-number\">18.06<\/span>\nerror execution phase preflight: &#91;preflight] Some fatal errors occurred:\n        &#91;ERROR FileContent--proc-sys-net-bridge-bridge-nf-call-iptables]: \/proc\/sys\/net\/bridge\/bridge-nf-call-iptables contents are not set to <span class=\"hljs-number\">1<\/span>\n&#91;preflight] <span class=\"hljs-keyword\">If<\/span> you know what you are doing, you can make a check non-fatal with `--ignore-preflight-errors=...`\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-4\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PHP<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">php<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p><strong>Solutions<\/strong> 3<\/p>\n\n\n<pre class=\"wp-block-code\"><span><code class=\"hljs\">kubeadm init --ignore-preflight-errors=all<\/code><\/span><\/pre>\n\n\n<p><strong>Error 4<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-5\" data-shcb-language-name=\"PHP\" data-shcb-language-slug=\"php\"><span><code class=\"hljs language-php\">&#91;root@ip<span class=\"hljs-number\">-172<\/span><span class=\"hljs-number\">-31<\/span><span class=\"hljs-number\">-31<\/span><span class=\"hljs-number\">-11<\/span> ec2-user]<span class=\"hljs-comment\"># kubeadm init<\/span>\n&#91;init] Using Kubernetes version: v1<span class=\"hljs-number\">.13<\/span><span class=\"hljs-number\">.3<\/span>\n&#91;preflight] Running pre-flight checks\n        &#91;WARNING SystemVerification]: this Docker version is not on the <span class=\"hljs-keyword\">list<\/span> of validated versions: <span class=\"hljs-number\">18.09<\/span><span class=\"hljs-number\">.1<\/span>. Latest validated version: <span class=\"hljs-number\">18.06<\/span>\nerror execution phase preflight: &#91;preflight] Some fatal errors occurred:\n        &#91;ERROR FileContent--proc-sys-net-bridge-bridge-nf-call-iptables]: \/proc\/sys\/net\/bridge\/bridge-nf-call-iptables contents are not set to <span class=\"hljs-number\">1<\/span>\n&#91;preflight] <span class=\"hljs-keyword\">If<\/span> you know what you are doing, you can make a check non-fatal with `--ignore-preflight-errors=...`<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-5\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PHP<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">php<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p><strong>Solutions 4<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-6\" data-shcb-language-name=\"PHP\" data-shcb-language-slug=\"php\"><span><code class=\"hljs language-php\">vi \/etc\/sysctl.conf\n<span class=\"hljs-comment\"># For more information, see sysctl.conf(5) and sysctl.d(5).<\/span>\nnet.bridge.bridge-nf-call-iptables = <span class=\"hljs-number\">1<\/span>\n\n<span class=\"hljs-comment\"># Verify and Make Effective<\/span>\n$ sudo sysctl -p\n\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-6\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PHP<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">php<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n<div class=\"epyt-gallery\" data-currpage=\"1\" id=\"epyt_gallery_73777\"><figure class=\"wp-block-embed wp-block-embed-youtube is-type-video is-provider-youtube epyt-figure\"><div class=\"wp-block-embed__wrapper\"><iframe loading=\"lazy\"  id=\"_ytid_42186\"  width=\"760\" height=\"427\"  data-origwidth=\"760\" data-origheight=\"427\" src=\"https:\/\/www.youtube.com\/embed\/?enablejsapi=1&#038;autoplay=0&#038;cc_load_policy=0&#038;cc_lang_pref=&#038;iv_load_policy=1&#038;loop=0&#038;rel=1&#038;fs=1&#038;playsinline=0&#038;autohide=2&#038;theme=dark&#038;color=red&#038;controls=1&#038;disablekb=0&#038;\" class=\"__youtube_prefs__  no-lazyload\" title=\"YouTube player\"  data-epytgalleryid=\"epyt_gallery_73777\"  allow=\"fullscreen; accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen data-no-lazy=\"1\" data-skipgform_ajax_framebjll=\"\"><\/iframe><\/div><\/figure><div class=\"epyt-gallery-list\"><div>Sorry, there was a YouTube error.<\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Error 1 Error 1 Error 2 Error 3 Solutions 3 Error 4 Solutions 4<\/p>\n","protected":false},"author":1,"featured_media":12790,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","_joinchat":[],"footnotes":""},"categories":[4859],"tags":[95,5449,258,4947,4860,1594],"class_list":["post-6415","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kubernetes","tag-devops","tag-devopsschool","tag-error","tag-kubeadm","tag-kubernetes","tag-solutions"],"_links":{"self":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/6415","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/comments?post=6415"}],"version-history":[{"count":4,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/6415\/revisions"}],"predecessor-version":[{"id":25458,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/6415\/revisions\/25458"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/media\/12790"}],"wp:attachment":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/media?parent=6415"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/categories?post=6415"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/tags?post=6415"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}