Ubuntu换国内源

换源步骤

备份原配置​​（防止误操作）：

sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak  # 20.04/22.04
sudo cp /etc/apt/sources.list.d/ubuntu.sources /etc/apt/sources.list.d/ubuntu.sources.bak  # 24.04

替换 /etc/apt/source.list 内容为国内源（根据自己的系统版本来）

Ubuntu20.04源

阿里源：

deb http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
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 multiverse

腾讯云

deb http://mirrors.cloud.tencent.com/ubuntu/ focal main restricted universe multiverse
deb http://mirrors.cloud.tencent.com/ubuntu/ focal-security main restricted universe multiverse
deb http://mirrors.cloud.tencent.com/ubuntu/ focal-updates main restricted universe multiverse
deb http://mirrors.cloud.tencent.com/ubuntu/ focal-proposed main restricted universe multiverse
deb http://mirrors.cloud.tencent.com/ubuntu/ focal-backports main restricted universe multiverse

Ubuntu22.04源

阿里源：

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

腾讯云

deb http://mirrors.cloud.tencent.com/ubuntu/ focal main restricted universe multiverse
deb http://mirrors.cloud.tencent.com/ubuntu/ focal-security main restricted universe multiverse
deb http://mirrors.cloud.tencent.com/ubuntu/ focal-updates main restricted universe multiverse
deb http://mirrors.cloud.tencent.com/ubuntu/ focal-proposed main restricted universe multiverse
deb http://mirrors.cloud.tencent.com/ubuntu/ focal-backports main restricted universe multiverse

Ubuntu24.04源

⚠️ ​​注意​​：24.04 改用结构化配置文件 ubuntu.sources，非传统 sources.list
阿里源：

# /etc/apt/sources.list.d/ubuntu.sources
Types: deb
URIs: https://mirrors.aliyun.com/ubuntu/
Suites: noble noble-security noble-updates noble-backports
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

腾讯云

# /etc/apt/sources.list.d/ubuntu.sources
Types: deb
URIs: http://mirrors.cloud.tencent.com/ubuntu/
Suites: noble noble-security noble-updates
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

最后执行 更新即可

sudo apt update