How to fix: error loading config file "/etc/rancher/k3s/k3s.yaml": open /etc/rancher/k3s/k3s.yaml: permission denied
- Change file permissions
sudo chmod 644 /etc/rancher/k3s/k3s.yaml
- Re-install k3s or start server modified kube config permissions
curl -sfL https://get.k3s.io | sh -s - --write-kubeconfig-mode 644
or
curl -sfL https://get.k3s.io | K3S_KUBECONFIG_MODE="644" sh -s -