kubeadm init fails on conntrack however lsmod shows it installed lsmod |grep con nf_conntrack_netlink 36868 0 nfnetlink 10710 2 nf_conntrack_netlink nf_conntrack_ipv4 15556 2 nf_defrag_ipv4 2348 1 nf_conntrack_ipv4 xt_conntrack 4454 1 nf_conntrack 142151 6 nf_conntrack_ipv4,nf_conntrack_netlink,nf_nat_masquerade_ipv4,xt_conntrack,nf_nat_ipv4,nf_nat x_tables 41226 5 ip_tables,iptable_filter,ipt_MASQUERADE,xt_addrtype,xt_conntrack
and with --ignore-preflight-errors=... it still fails root@jetson-nano-qspi-sd:~# kubeadm init --ignore-preflight-errors=... --pod-network-cidr=10.244.0.0/16 --v=5 I0521 07:17:37.135612 10539 initconfiguration.go:103] detected and using CRI socket: /var/run/dockershim.sock I0521 07:17:37.136062 10539 interface.go:400] Looking for default routes with IPv4 addresses I0521 07:17:37.136105 10539 interface.go:405] Default route transits interface "eth0" I0521 07:17:37.136390 10539 interface.go:208] Interface eth0 is up I0521 07:17:37.136557 10539 interface.go:256] Interface "eth0" has 2 addresses :[192.168.2.132/24 fe80::2e0:4cff:fe68:20d/64]. I0521 07:17:37.136651 10539 interface.go:223] Checking addr 192.168.2.132/24. I0521 07:17:37.136684 10539 interface.go:230] IP found 192.168.2.132 I0521 07:17:37.136731 10539 interface.go:262] Found valid IPv4 address 192.168.2.132 for interface "eth0". I0521 07:17:37.136760 10539 interface.go:411] Found active IP 192.168.2.132 I0521 07:17:37.136908 10539 version.go:183] fetching Kubernetes version from URL: https://dl.k8s.io/release/stable-1.txt W0521 07:17:37.985197 10539 configset.go:202] WARNING: kubeadm cannot validate component configs for API groups [kubelet.config.k8s.io kubeproxy.config.k8s.io] [init] Using Kubernetes version: v1.18.3 [preflight] Running pre-flight checks I0521 07:17:37.985770 10539 checks.go:577] validating Kubernetes and kubeadm version I0521 07:17:37.985877 10539 checks.go:166] validating if the firewall is enabled and active I0521 07:17:38.006216 10539 checks.go:201] validating availability of port 6443 I0521 07:17:38.006588 10539 checks.go:201] validating availability of port 10259 I0521 07:17:38.006706 10539 checks.go:201] validating availability of port 10257 I0521 07:17:38.006825 10539 checks.go:286] validating the existence of file /etc/kubernetes/manifests/kube-apiserver.yaml I0521 07:17:38.006893 10539 checks.go:286] validating the existence of file /etc/kubernetes/manifests/kube-controller-manager.yaml I0521 07:17:38.006977 10539 checks.go:286] validating the existence of file /etc/kubernetes/manifests/kube-scheduler.yaml I0521 07:17:38.007101 10539 checks.go:286] validating the existence of file /etc/kubernetes/manifests/etcd.yaml I0521 07:17:38.007181 10539 checks.go:432] validating if the connectivity type is via proxy or direct I0521 07:17:38.007241 10539 checks.go:471] validating http connectivity to first IP address in the CIDR I0521 07:17:38.007342 10539 checks.go:471] validating http connectivity to first IP address in the CIDR I0521 07:17:38.007456 10539 checks.go:102] validating the container runtime I0521 07:17:38.103903 10539 checks.go:128] validating if the service is enabled and active I0521 07:17:38.233858 10539 checks.go:335] validating the contents of file /proc/sys/net/bridge/bridge-nf-call-iptables I0521 07:17:38.233985 10539 checks.go:335] validating the contents of file /proc/sys/net/ipv4/ip_forward I0521 07:17:38.234058 10539 checks.go:649] validating whether swap is enabled or not I0521 07:17:38.234140 10539 checks.go:376] validating the presence of executable conntrack I0521 07:17:38.234260 10539 checks.go:376] validating the presence of executable ip I0521 07:17:38.234331 10539 checks.go:376] validating the presence of executable iptables I0521 07:17:38.234386 10539 checks.go:376] validating the presence of executable mount I0521 07:17:38.234456 10539 checks.go:376] validating the presence of executable nsenter I0521 07:17:38.234550 10539 checks.go:376] validating the presence of executable ebtables I0521 07:17:38.234636 10539 checks.go:376] validating the presence of executable ethtool I0521 07:17:38.234777 10539 checks.go:376] validating the presence of executable socat I0521 07:17:38.234814 10539 checks.go:376] validating the presence of executable tc I0521 07:17:38.234899 10539 checks.go:376] validating the presence of executable touch I0521 07:17:38.234942 10539 checks.go:520] running all checks I0521 07:17:38.353978 10539 checks.go:406] checking whether the given node name is reachable using net.LookupHost I0521 07:17:38.354066 10539 checks.go:618] validating kubelet version I0521 07:17:38.490789 10539 checks.go:128] validating if the service is enabled and active I0521 07:17:38.514091 10539 checks.go:201] validating availability of port 10250 I0521 07:17:38.514265 10539 checks.go:201] validating availability of port 2379 I0521 07:17:38.514364 10539 checks.go:201] validating availability of port 2380 I0521 07:17:38.514457 10539 checks.go:249] validating the existence and emptiness of directory /var/lib/etcd [preflight] Some fatal errors occurred: [ERROR FileExisting-conntrack]: conntrack not found in system path [preflight] If you know what you are doing, you can make a check non-fatal with `--ignore-preflight-errors=...` error execution phase preflight k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/workflow.(*Runner).Run.func1 /home/dingo/yocto/NANO/build/tmp/work/aarch64-poky-linux/kubernetes/v1.18.3-beta+gitfe3ac3e38838a09dfd4b48d568083144211a95f8-r0/kubernetes-v1.18.3-beta+gitfe3ac3e38838a09dfd4b48d568083144211a95f8/src/import/_output/local/go/src/k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/workflow/runner.go:235 k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/workflow.(*Runner).visitAll /home/dingo/yocto/NANO/build/tmp/work/aarch64-poky-linux/kubernetes/v1.18.3-beta+gitfe3ac3e38838a09dfd4b48d568083144211a95f8-r0/kubernetes-v1.18.3-beta+gitfe3ac3e38838a09dfd4b48d568083144211a95f8/src/import/_output/local/go/src/k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/workflow/runner.go:422 k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/workflow.(*Runner).Run /home/dingo/yocto/NANO/build/tmp/work/aarch64-poky-linux/kubernetes/v1.18.3-beta+gitfe3ac3e38838a09dfd4b48d568083144211a95f8-r0/kubernetes-v1.18.3-beta+gitfe3ac3e38838a09dfd4b48d568083144211a95f8/src/import/_output/local/go/src/k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/workflow/runner.go:207 k8s.io/kubernetes/cmd/kubeadm/app/cmd.NewCmdInit.func1 /home/dingo/yocto/NANO/build/tmp/work/aarch64-poky-linux/kubernetes/v1.18.3-beta+gitfe3ac3e38838a09dfd4b48d568083144211a95f8-r0/kubernetes-v1.18.3-beta+gitfe3ac3e38838a09dfd4b48d568083144211a95f8/src/import/_output/local/go/src/k8s.io/kubernetes/cmd/kubeadm/app/cmd/init.go:147 k8s.io/kubernetes/vendor/github.com/spf13/cobra.(*Command).execute /home/dingo/yocto/NANO/build/tmp/work/aarch64-poky-linux/kubernetes/v1.18.3-beta+gitfe3ac3e38838a09dfd4b48d568083144211a95f8-r0/kubernetes-v1.18.3-beta+gitfe3ac3e38838a09dfd4b48d568083144211a95f8/src/import/_output/local/go/src/k8s.io/kubernetes/vendor/github.com/spf13/cobra/command.go:826 k8s.io/kubernetes/vendor/github.com/spf13/cobra.(*Command).ExecuteC /home/dingo/yocto/NANO/build/tmp/work/aarch64-poky-linux/kubernetes/v1.18.3-beta+gitfe3ac3e38838a09dfd4b48d568083144211a95f8-r0/kubernetes-v1.18.3-beta+gitfe3ac3e38838a09dfd4b48d568083144211a95f8/src/import/_output/local/go/src/k8s.io/kubernetes/vendor/github.com/spf13/cobra/command.go:914 k8s.io/kubernetes/vendor/github.com/spf13/cobra.(*Command).Execute /home/dingo/yocto/NANO/build/tmp/work/aarch64-poky-linux/kubernetes/v1.18.3-beta+gitfe3ac3e38838a09dfd4b48d568083144211a95f8-r0/kubernetes-v1.18.3-beta+gitfe3ac3e38838a09dfd4b48d568083144211a95f8/src/import/_output/local/go/src/k8s.io/kubernetes/vendor/github.com/spf13/cobra/command.go:864 k8s.io/kubernetes/cmd/kubeadm/app.Run /home/dingo/yocto/NANO/build/tmp/work/aarch64-poky-linux/kubernetes/v1.18.3-beta+gitfe3ac3e38838a09dfd4b48d568083144211a95f8-r0/kubernetes-v1.18.3-beta+gitfe3ac3e38838a09dfd4b48d568083144211a95f8/src/import/_output/local/go/src/k8s.io/kubernetes/cmd/kubeadm/app/kubeadm.go:50 main.main _output/local/go/src/k8s.io/kubernetes/cmd/kubeadm/kubeadm.go:25 runtime.main /usr/lib/go/src/runtime/proc.go:203 runtime.goexit /usr/lib/go/src/runtime/asm_arm64.s:1148 root@jetson-nano-qspi-sd:~#
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