1.时区配置错误;

- 2.初始化失败可能是cpu核心不足，内存没有禁用swap

- 3.镜像拉取失败，在对应节点手动导入镜像
    http://192.168.15.253/Resources/Kubernetes/Case-Demo/oldboyedu-xiuxian-v1.tar.gz
    http://192.168.15.253/Resources/Kubernetes/Case-Demo/oldboyedu-xiuxian-v2.tar.gz

- 4.节点名称不一致，需要修改过来，建议重做，加深印象;

- 5.flannel.1和cni0网段不一致，删除cni0网卡继续执行
     ip link del cni0 type bridge

- 6.虚拟机无法联网，检查配置是否正确:
    [root@master231 ~]# cat /etc/netplan/00-installer-config.yaml 
    # This is the network config written by 'subiquity'
    network:
      ethernets:
        eth0:
          dhcp4: false
          #dhcp4: true
          addresses:
            - 10.0.0.231/24
          routes:
            - to: default
              via: 10.0.0.254
          nameservers:
            addresses:
              - 223.5.5.5
              - 223.6.6.6
      version: 2
    [root@master231 ~]# 

- 7.虚拟机开不起来了;
    http://192.168.15.253/Ubuntu%2022.04.4%20LTS.zip