pve apt 更新

解决pve6.2/pve6.3 安装ifupdown2,失败问题 https://www.cnblogs.com/lovesKey/p/14400874.html
https://blog.whsir.com/post-5618.html

https://blog.51cto.com/u_5404628/2478603
https://www.ixigua.com/6908878204354855432?wid_try=1
pve扩容
https://www.jianshu.com/p/bdb83531c56d