目录安装操作系统跳过创建虚拟机验证磁盘分区配置静态IP开启root登录配置yum源安装操作系统跳过创建虚拟机选择语言英语下一步默认安装ubuntu server注意选择下方最小化没有vi命令配置IPV4 选择disabled 先暂时关闭继续下一步直接回车下一步直接回车下一步回车下一步选择创建lvm磁盘分区重新分区 / 盘给50GSwap分区 16G/var 100G/opt 分剩余全部设置用户密码安装ssh等待安装后重启输入普通用户密码后sudo -i 提权然后修改root密码验证磁盘分区配置静态IPvim /etc/netplan/01-network-manager-all.yamlnetwork: ethernets: eth0: addresses: [192.168.50.80/24] gateway4: 192.168.50.254 dhcp4: false nameservers: addresses: [114.114.114.114] version: 2重启网络netplan applyping网关测试开启root登录SSH远程登录vi /etc/ssh/sshd_config把PermitRootLogin without-password改为PermitRootLogin yes重启服务配置yum源cp /etc/apt/sources.list /etc/apt/sources.list.bakvi /etc/apt/sources.list # 清空内容写入下方代码块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 multiverseapt-get udpate