原始笔记是几段标题层级混乱的环境搭建片段，”中科大源”的内容实际上还是阿里云的（直接复用了），netplan / curl / root 几小节零散贴在末尾。这里只把章节按”换源 / Python / 系统配置 / 网络 / 工具”四块归拢，命令片段原样保留，不替换其中可疑的源地址，避免误改。
当前保留内容
1. 更换 apt 源（jammy / 22.04）
1.1 清华源
sudo bash -c "cat << EOF > /etc/apt/sources.list && apt update
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-security main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-security main restricted universe multiverse
EOF"
1.2 163 源
sudo bash -c "cat << EOF > /etc/apt/sources.list && apt update
deb http://mirrors.163.com/ubuntu/ jammy main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ jammy-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ jammy-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ jammy-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ jammy main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ jammy-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ jammy-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ jammy-backports main restricted universe multiverse
EOF"
1.3 阿里云
sudo bash -c "cat << EOF > /etc/apt/sources.list && apt update
deb http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse
EOF"
1.4 中科大
注：原始笔记此处的内容与”阿里云”一致，疑似复制粘贴时漏改。这里如实保留，待校对后再用真正的中科大源（
mirrors.ustc.edu.cn）替换。
sudo bash -c "cat << EOF > /etc/apt/sources.list && apt update
deb http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse
EOF"
换源完成之后，生效命令：sudo apt update。
2. Python / pip
2.1 pip 升级与查看可用版本
sudo pip install --upgrade pip
查看安装版本
pip install numpy==
2.2 Python openssl 源码编译？python3-openssl？
（待补充。）
3. 系统配置
3.1 分区、扩容
参考：https://blog.csdn.net/Xin_101/article/details/125929428
3.2 关闭锁屏
（待补充。）
3.3 Windows 设置输入法（关闭微软自带，更换为搜狗）
设置 → 时间和语言 → 键盘 → 添加语言并删除原有的微软输入法。
3.4 Windows 设置程序的开机启动（类似 macOS）
（待补充。）
4. 网络（netplan）
network:
version: 2
renderer: networkd
ethernets:
enp3s0:
addresses:
- 10.10.10.2/24
gateway4: 10.10.10.1
nameservers:
search: [mydomain, otherdomain]
addresses: [10.10.10.1, 1.1.1.1]
其他 netplan 配置
如 1 个网卡多个 IP 等场景，待补充。
5. 常用工具与账号
5.1 curl / net-tools / vim
（待补充安装清单与最小配置。）
5.2 root 账号设置密码
sudo passwd root
5.3 安装 GitKraken
后续可补的方向
- 把”中科大源”修正为真正的
mirrors.ustc.edu.cn，并补一份脚本：自动 ping 三家源择最快的写入sources.list。 - 补全 Python openssl 源码编译的步骤（含
--with-openssl=配置）。 - netplan 多 IP / 多网卡 / VLAN 的几个常见 yaml 模板各给一份。
