{"action":"closed","issue":{"url":"https://api.github.com/repos/kubernetes/kubernetes/issues/36301","repository_url":"https://api.github.com/repos/kubernetes/kubernetes","labels_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/36301/labels{/name}","comments_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/36301/comments","events_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/36301/events","html_url":"https://github.com/kubernetes/kubernetes/issues/36301","id":187541416,"number":36301,"title":"kubeadm: preflight check false positives in CentOS 7","user":{"login":"jberkus","id":115146,"avatar_url":"https://avatars.githubusercontent.com/u/115146?v=3","gravatar_id":"","url":"https://api.github.com/users/jberkus","html_url":"https://github.com/jberkus","followers_url":"https://api.github.com/users/jberkus/followers","following_url":"https://api.github.com/users/jberkus/following{/other_user}","gists_url":"https://api.github.com/users/jberkus/gists{/gist_id}","starred_url":"https://api.github.com/users/jberkus/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jberkus/subscriptions","organizations_url":"https://api.github.com/users/jberkus/orgs","repos_url":"https://api.github.com/users/jberkus/repos","events_url":"https://api.github.com/users/jberkus/events{/privacy}","received_events_url":"https://api.github.com/users/jberkus/received_events","type":"User","site_admin":false},"labels":[{"id":451459590,"url":"https://api.github.com/repos/kubernetes/kubernetes/labels/component/kubeadm","name":"component/kubeadm","color":"0052cc","default":false}],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":14,"created_at":"2016-11-06T04:30:49Z","updated_at":"2016-11-22T17:43:09Z","closed_at":"2016-11-22T17:43:09Z","body":"Platform:  CentOS 7.2.1511 on AWS EC2 (t2.medium)\r\n\r\nkubeadm version: version.Info{Major:\"1\", Minor:\"5+\", GitVersion:\"v1.5.0-alpha.2.380+85fe0f1aadf91e\", GitCommit:\"85fe0f1aadf91e134102cf3c01a9eed11a7e257f\", GitTreeState:\"clean\", BuildDate:\"2016-11-02T14:58:17Z\", GoVersion:\"go1.7.1\", Compiler:\"gc\", Platform:\"linux/amd64\"}\r\n\r\nSymptoms:\r\n\r\nWhile following installation instructions at http://kubernetes.io/docs/getting-started-guides/kubeadm/, I am finding that I need to always disable preflight checks due to spurious failures.  \r\n\r\nWith kubeadmin --init:\r\n\r\n```\r\npreflight check errors:\r\n\tebtables not found in system path\r\n```\r\n\r\nThis error appears on all CentOS machines on AWS I've tried.  It doesn't seem to relate to anything at all that I can find; the only google hit I can get on it is a Kubernetes issue explaining how to use --skip-preflight-checks.  It does not seem to block kubeadmin setup.\r\n\r\nOn the nodes I get an additional error:\r\n\r\n```\r\npreflight check errors:\r\n\t/etc/kubernetes is not empty\r\n\tebtables not found in system path\r\n```\r\n\r\nIndeed, /etc/kubernetes is not empty ... because the RPMs distributed by Kubernetes.io include a sub-directory in that dir, \"manifests\".\r\n\r\n\r\n\r\n\r\n"}}
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