//系统
$ lsb_release -a
LSB Version: core-11.0.1ubuntu1-noarch:security-11.0.1ubuntu1-noarch
Distributor ID: Ubuntu
Description: Ubuntu 19.10
Release: 19.10
Codename: eoan
//初次使用
//默认的帐密 ubuntu:ubuntu
//可以使用的桌面(可选)
$ sudo apt-get install xubuntu-desktop
$ sudo apt-get install lubuntu-desktop
$ sudo apt-get install kubuntu-desktop
//使用tasksel(可选) 参考 https://help.ubuntu.com/community/Tasksel
$ sudo apt-get install tasksel
//[相关的wiki百科](https://wiki.ubuntu.com/ARM/RaspberryPi?&_ga=2.213055636.1697914948.1577669395-1300144545.1573614546
//更换源(建议先更换源再安装桌面等包)
$ sudo cp -p /etc/apt/sources.list /etc/apt/sources.list.bak
$ sudo vim /etc/apt/sources.list //编辑文件
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deb http://mirrors.aliyun.com/ubuntu-ports eoan main restricted
deb http://mirrors.aliyun.com/ubuntu-ports eoan-updates main restricted
deb http://mirrors.aliyun.com/ubuntu-ports eoan universe
deb http://mirrors.aliyun.com/ubuntu-ports eoan-updates universe
deb http://mirrors.aliyun.com/ubuntu-ports eoan multiverse
deb http://mirrors.aliyun.com/ubuntu-ports eoan-updates multiverse
deb http://mirrors.aliyun.com/ubuntu-ports eoan-backports main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu-ports eoan-security main restricted
deb http://mirrors.aliyun.com/ubuntu-ports eoan-security universe
deb http://mirrors.aliyun.com/ubuntu-ports eoan-security multiverse
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$ sudo apt-get update -y //更新包
$ sudo apt-get upgrade -y //更新系统
//改变默认编辑器 To change later, run 'select-editor'.
//校准时间
$ sudo apt install ntpdate
$ sudo date -R //更正时区(该命令查看时区)
$ sudo tzselect //调整时区(依次选择 4 → 9 → 1 → 1)
$ sudo cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime //覆盖原时区设置
$ ntpdate time1.aliyun.com
//安装常用的net-tools
$ sudo apt-get install net-tools
//使用xrdp远程桌面控制(rdp)
$ sudo apt-get install xrdp
$ sudo systemctl start xrdp
$ sudo systemctl enable xrdp
$ sudo lsof -i:3389 //监听3389端口
//安装lsb-core显示完整lsb内容
$ sudo apt-get install lsb-core
//启用root
$ sudo passwd root //设置root密码
$ sudo vim /usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf
greeter-show-manual-login=true
all-guest=false
$ sudo vim /etc/pam.d/gdm-autologin //注释掉以下行
$ sudo vim /etc/pam.d/gdm-password //注释掉以下行
$ su root //切换到root
把mesg n || true 修改为 tty -s && mesg n || true
//重启系统即可
//变更图形管理器
![在这里插入图片描述](https://img-blog.csdnimg.cn/20200110135259886.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM1NTkwMTk4,size_16,color_FFFFFF,t_70)
//设置开机启动自定义内容
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[Install]
WantedBy=multi-user.target
Alias=rc-local.service
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exit 0
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//重启设备验证