centos7.9安装完k3s之后,pod状态正在创建中,Warning FailedCreatePodSandBox 2m4s (x338 over 77m) kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to create containerd task: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: error during container init: open /proc/sys/net/ipv4/ip_unprivileged_port_start: no such file or directory: unknown
centos7.9怎么没有/proc/sys/net/ipv4/ip_unprivileged_port_start这个文件