【Ubuntu】Ubuntu 配置镜像源（ARM）
零、起因
最近在QEMU中安装了个ubuntu-24.04-live-server-arm64，默认是国外的软件源，很慢，故替换到国内。
壹、替换
源地址（清华源）
/help/ubuntu-ports/
软件源文件内容：
传统格式（/etc/apt/）
# 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 /ubuntu-ports/ noble main restricted universe multiverse
# deb-src /ubuntu-ports/ noble main restricted universe multiverse
deb /ubuntu-ports/ noble-updates main restricted universe multiverse
# deb-src /ubuntu-ports/ noble-updates main restricted universe multiverse
deb /ubuntu-ports/ noble-backports main restricted universe multiverse
# deb-src /ubuntu-ports/ noble-backports main restricted universe multiverse
# 以下安全更新软件源包含了官方源与镜像站配置，如有需要可自行修改注释切换
deb /ubuntu-ports/ noble-security main restricted universe multiverse
# deb-src /ubuntu-ports/ noble-security main restricted universe multiverse
# 预发布软件源，不建议启用
# deb /ubuntu-ports/ noble-proposed main restricted universe multiverse
# # deb-src /ubuntu-ports/ noble-proposed main restricted universe multiverse
DEB822 格式（/etc/apt//）
Types: deb
URIs: /ubuntu-ports
Suites: noble noble-updates noble-backports
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/
# 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
# Types: deb-src
# URIs: /ubuntu-ports
# Suites: noble noble-updates noble-backports
# Components: main restricted universe multiverse
# Signed-By: /usr/share/keyrings/
# 以下安全更新软件源包含了官方源与镜像站配置，如有需要可自行修改注释切换
Types: deb
URIs: /ubuntu-ports/
Suites: noble-security
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/
# Types: deb-src
# URIs: /ubuntu-ports/
# Suites: noble-security
# Components: main restricted universe multiverse
# Signed-By: /usr/share/keyrings/
# 预发布软件源，不建议启用
# Types: deb
# URIs: /ubuntu-ports
# Suites: noble-proposed
# Components: main restricted universe multiverse
# Signed-By: /usr/share/keyrings/
# # Types: deb-src
# # URIs: /ubuntu-ports
# # Suites: noble-proposed
# # Components: main restricted universe multiverse
# # Signed-By: /usr/share/keyrings/
选择一种方式写入到对应文件中去，更新软件源：
sudo apt-get update
sudo apt-get upgrade
更新完软件源后即可使用更新后的镜像源~
贰、参考
- Ubuntu Ports 软件仓库
- 如何在 Ubuntu 上启用 SSH，安全地远程管理和传输数据
- WIN10 x86环境部署ARM虚拟机（银河麒麟）实例