目录
- 一、安装远程桌面控制软件Nomachine
- 二、取消设置登录环
- 三、更换apt软件源清华源（重要）
- 六、[安装中文输入法](https://zhuanlan.zhihu.com/p/111734450#:~:text=%E4%BB%A5%E4%B8%8B%E4%B8%BA%E8%AE%BE%E7%BD%AE%E4%B8%AD%E6%96%87%E4%BB%A5%E5%8F%8A%E4%B8%AD%E6%96%87%E8%BE%93%E5%85%A5%E6%B3%95%E6%AD%A5%E9%AA%A4%EF%BC%9A%201%EF%BC%89%E6%89%93%E5%BC%80%E8%AE%BE%E7%BD%AE%EF%BC%8C%E9%80%89%E6%8B%A9%E2%80%9CRegion&Language%E2%80%9D%E9%80%89%E9%A1%B9%EF%BC%8C%E5%B9%B6%E9%80%89%E6%8B%A9%E9%A1%B5%E9%9D%A2%E4%B8%AD%E7%9A%84%E2%80%9CManguage%E2%80%9D,2%EF%BC%89%E9%80%89%E6%8B%A9%E2%80%9Cinstall/remove%20language%E2%80%9D%E9%80%89%E9%A1%B9%EF%BC%8C%E5%B9%B6%E6%B7%BB%E5%8A%A0%E4%B8%AD%E6%96%87%EF%BC%8C%E7%AD%89%E5%BE%85%E4%B8%8B%E8%BD%BD%E5%AE%8C%E6%88%90%E4%B9%8B%E5%90%8E%E9%87%8D%E5%90%AF%E8%99%9A%E6%8B%9F%E6%9C%BA%E5%AE%8C%E6%88%90%E5%AE%89%E8%A3%85)
一、安装远程桌面控制软件Nomachine
通过运行以下命令看你的设备是ARMv7还是ARMv8：
sudo uname -a
下载DEB格式，在下载目录打开终端，或者cd Downloads/，输入：sudo dpkg -i nomachine后按Tab自动补全，安装即可.
二、取消设置登录环
- 打开应用程序－>附件－>密码和加密密钥(如果菜单是英文的找不到，终端输入
seahorse)，切换到密码选项卡，会看到一个密码密钥环(密钥环是 login) - 右击－>更改密码，然后在“旧密码”中填入系统登录密码，其他不用填，直接确定，并选择“使用不安全的存储器”,确定即可
三、更换apt软件源清华源（重要）
*Jetson Nano/Xavier都是ARM架构，替换软件源一定不要使用X86架构的源
1.备份sources.list
sudo cp /etc/apt/sources.list /etc/apt/sources.list.backup
2.使用gedit修改source.list（也可以使用vim，需掌握vim语法）
删除原有文本，替换如下：
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-updates main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-security main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-security main restricted universe multiverse
X86架构替换如下：
# 默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
# 预发布软件源，不建议启用
# deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
3.更新软件源
sudo apt-get update