Update v1.25.0-CentOS-binary-install-IPv6-IPv4-Three-Masters-Two-Slav…

…es.md

doc/v1.25.0-CentOS-binary-install-IPv6-IPv4-Three-Masters-Two-Slaves.md

@@ -2706,7 +2706,27 @@ EOF
 
 **注意 9.1 和 9.2 二选其一即可，9.2 暂时不支持IPv4 IPv6双栈**
 
-**群里网友反映说 centos7 要升级libseccomp 不然 无法安装calico**
+** centos7 要升级libseccomp 不然 无法安装网络插件**
+```shell
+# https://github.com/opencontainers/runc/releases
+# 升级runc
+[root@k8s-master-1 ~]# wget https://ghproxy.com/https://github.com/opencontainers/runc/releases/download/v1.1.4/runc.amd64
+[root@k8s-master-1 ~]# install -m 755 runc.amd64 /usr/local/sbin/runc
+[root@k8s-master-1 ~]# cp -p /usr/local/sbin/runc  /usr/local/bin/runc
+[root@k8s-master-1 ~]# cp -p /usr/local/sbin/runc  /usr/bin/runc
+
+
+[root@k8s-master-1 ~]# rpm -qa | grep libseccomp
+libseccomp-2.3.1-4.el7.x86_64
+
+#下载高于2.4以上的包
+[root@k8s-master-1 ~]# yum -y install http://rpmfind.net/linux/centos/8-stream/BaseOS/x86_64/os/Packages/libseccomp-2.5.1-1.el8.x86_64.rpm
+
+#查看当前版本
+[root@k8s-master-1 ~]# rpm -qa | grep libseccomp
+libseccomp-2.5.1-1.el8.x86_64
+
+```
 
 ## 9.1安装Calico