PVE下如何配置新安装的 ubuntu 20.04 server 虚拟机

下载安装镜像ISO

阿里云ubuntu-20.04-live-server下载
阿里云ubuntu-18.04-live-server下载

新建虚拟机

• 略

插入ISO镜像，安装系统

• 略

修改apt-get为aliyun源：

• 用你熟悉的编辑器打开/etc/apt/sources.list，编辑为下面的内容
• 非20.04版本内容请访问阿里云 - Ubuntu 镜像，查看更多内容

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  deb http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse

安装基本网络工具

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sudo apt install net-tools

修改root密码为vm

输入 sudo passwd 命令，然后会提示输入当前用户的密码。
按enter键，终端会提示输入新的密码并确认，此时的密码就是新的root密码。
修改完毕以后，在执行su root命令，此时输入新的root密码即可。

新增SSH免密登录

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cd ~
mkdir .ssh
echo ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAyq1pB5aF0w6ps4OzwQl1C8uP41Iq7J+gqylLMXkoESrTUVhH1+irHuImxi2At886sO7x9s+b4jhRZoJZpZURPU4UmzUEBHKoXlqOf9eO//GtUita2AaPFw5tc0YgLPrgnO+z5MKfjo20aoJtVBvleRA/0YJcWy1a6ufXa8944D8a1Dirc9uVNR5QjKVFRbQt/twLkLdFB6t16HCwISKCVI56DcJOoY2g7mXI8clKaESeB+ANIhSKJclPwjoC6P0pHFfgqNauxC+0xugx3W2ZSIkVhdZu1L7iKvzXXPiETjPQA6qMjp/1dY2WU49Lf+wDOQplCy4HLq7QqNNVSzIBGw== Administrator@PCOS-1407251925 >> ~/.ssh/authorized_keys

SSH启用允许root远程连接：

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sudo vim /etc/ssh/sshd_config

• 将PermitRootLogin这一项取消注释，并改为yes

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  #LoginGraceTime 2m #PermitRootLogin prohibit-password PermitRootLogin yes #StrictModes yes #MaxAuthTries 6 #MaxSessions 10

安装qemu-guest-agent

• 参考https://pve.proxmox.com/wiki/Qemu-guest-agent

  1	apt-get install qemu-guest-agent

参考

https://developer.aliyun.com/mirror/ubuntu?spm=a2c6h.13651102.0.0.3e221b11WgXtYw