概述

Ubuntu，是一款基于Debian Linux的以桌面应用为主的操作系统，内容涵盖文字处理、电子邮件、软件开发工具和Web服务等，可供用户免费下载、使用和分享。该镜像仅适用于配置 x86 架构下的 ubuntu系统，如果您的系统为 ARM, PowerPC 等其他架构，请使用 ubuntu-ports 源进行配置

下载地址：http://mirrors.baidubce.com/ubuntu/

配置方法

1. 备份配置文件

#执行以下命令
mv /etc/apt/sources.list /etc/apt/sources.list.bak

2. 确认系统版本代号

请对照下表确认版本：

版本	版本代号
Ubuntu 14.04	trusty
Ubuntu 16.04	xenial
Ubuntu 18.04	bionic
Ubuntu 20.04	focal
Ubuntu 22.04	jammy
Ubuntu 23.04	lunar
Ubuntu 24.04	noble

3. 创建新的配置文件

输入以下命令打开编辑器

vim /etc/apt/sources.list

复制对应版本的配置，根据系统版本代号，从下方框内复制全部内容：

ubuntu 14.04 LTS (trusty) (EOL) 配置如下

deb http://mirrors.baidubce.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ trusty main restricted universe multiverse

deb http://mirrors.baidubce.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ trusty-security main restricted universe multiverse

deb http://mirrors.baidubce.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ trusty-updates main restricted universe multiverse

deb http://mirrors.baidubce.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ trusty-backports main restricted universe multiverse

# Not recommended
# deb http://mirrors.baidubce.com/ubuntu/ trusty-proposed main restricted universe multiverse
# deb-src http://mirrors.baidubce.com/ubuntu/ trusty-proposed main restricted universe multiverse

ubuntu 16.04 LTS (xenial) (EOL) 配置如下

deb http://mirrors.baidubce.com/ubuntu/ xenial main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ xenial main restricted universe multiverse

deb http://mirrors.baidubce.com/ubuntu/ xenial-security main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ xenial main restricted universe multiverse

deb http://mirrors.baidubce.com/ubuntu/ xenial-updates main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ xenial-updates main restricted universe multiverse

deb http://mirrors.baidubce.com/ubuntu/ xenial-backports main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ xenial-updates main restricted universe multiverse

# deb http://mirrors.baidubce.com/ubuntu/ xenial-proposed main restricted universe multiverse
# deb-src http://mirrors.baidubce.com/ubuntu/ xenial-proposed main restricted universe multiverse

ubuntu 18.04 LTS (bionic) 配置如下

deb http://mirrors.baidubce.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ bionic main restricted universe multiverse

deb http://mirrors.baidubce.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ bionic-security main restricted universe multiverse

deb http://mirrors.baidubce.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ bionic-updates main restricted universe multiverse

# deb http://mirrors.baidubce.com/ubuntu/ bionic-proposed main restricted universe multiverse
# deb-src http://mirrors.baidubce.com/ubuntu/ bionic-proposed main restricted universe multiverse

deb http://mirrors.baidubce.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ bionic-backports main restricted universe multiverse

ubuntu 20.04 LTS (focal) 配置如下

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

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

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

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

# deb http://mirrors.baidubce.com/ubuntu/ focal-proposed main restricted universe multiverse
# deb-src http://mirrors.baidubce.com/ubuntu/ focal-proposed main restricted universe multiverse

ubuntu 22.04 LTS (jammy) 配置如下

deb http://mirrors.baidubce.com/ubuntu/ jammy main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ jammy main restricted universe multiverse

deb http://mirrors.baidubce.com/ubuntu/ jammy-security main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ jammy-security main restricted universe multiverse

deb http://mirrors.baidubce.com/ubuntu/ jammy-updates main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ jammy-updates main restricted universe multiverse

# deb http://mirrors.baidubce.com/ubuntu/ jammy-proposed main restricted universe multiverse
# deb-src http://mirrors.baidubce.com/ubuntu/ jammy-proposed main restricted universe multiverse

deb http://mirrors.baidubce.com/ubuntu/ jammy-backports main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ jammy-backports main restricted universe multiverse

ubuntu 23.04 (lunar) 配置如下

deb http://mirrors.baidubce.com/ubuntu/ lunar main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ lunar main restricted universe multiverse

deb http://mirrors.baidubce.com/ubuntu/ lunar-security main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ lunar-security main restricted universe multiverse

deb http://mirrors.baidubce.com/ubuntu/ lunar-updates main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ lunar-updates main restricted universe multiverse

# deb http://mirrors.baidubce.com/ubuntu/ lunar-proposed main restricted universe multiverse
# deb-src http://mirrors.baidubce.com/ubuntu/ lunar-proposed main restricted universe multiverse

deb http://mirrors.baidubce.com/ubuntu/ lunar-backports main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ lunar-backports main restricted universe multiverse

ubuntu 24.04 (noble) 配置如下

deb http://mirrors.baidubce.com/ubuntu/ noble main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ noble main restricted universe multiverse

deb http://mirrors.baidubce.com/ubuntu/ noble-security main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ noble-security main restricted universe multiverse

deb http://mirrors.baidubce.com/ubuntu/ noble-updates main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ noble-updates main restricted universe multiverse

# deb http://mirrors.baidubce.com/ubuntu/ noble-proposed main restricted universe multiverse
# deb-src http://mirrors.baidubce.com/ubuntu/ noble-proposed main restricted universe multiverse

deb http://mirrors.baidubce.com/ubuntu/ noble-backports main restricted universe multiverse
deb-src http://mirrors.baidubce.com/ubuntu/ noble-backports main restricted universe multiverse

4. 更新缓存

依次输入以下两条命令：

# 清理旧缓存
apt-get clean
# 获取新仓库列表
apt-get update

5. 验证

# 输入命令
apt-cache policy

如果输出的内容里，地址都指向了 mirrors.baidubce.com则配置成功

示例：
root@ubuntu:~# apt-cache policy
Package files:
 100 /var/lib/dpkg/status
     release a=now
 500 http://mirrors.baidubce.com/ubuntu/ trusty-backports/universe Translation-en
 500 http://mirrors.baidubce.com/ubuntu/ trusty-backports/restricted Translation-en
 500 http://mirrors.baidubce.com/ubuntu/ trusty-backports/multiverse Translation-en
 500 http://mirrors.baidubce.com/ubuntu/ trusty-backports/main Translation-en
 100 http://mirrors.baidubce.com/ubuntu/ trusty-backports/multiverse amd64 Packages
     release v=14.04,o=Ubuntu,a=trusty-backports,n=trusty,l=Ubuntu,c=multiverse
     origin mirrors.baidubce.com
 100 http://mirrors.baidubce.com/ubuntu/ trusty-backports/universe amd64 Packages
     release v=14.04,o=Ubuntu,a=trusty-backports,n=trusty,l=Ubuntu,c=universe
     origin mirrors.baidubce.com
 100 http://mirrors.baidubce.com/ubuntu/ trusty-backports/restricted amd64 Packages
     release v=14.04,o=Ubuntu,a=trusty-backports,n=trusty,l=Ubuntu,c=restricted
     origin mirrors.baidubce.com
 100 http://mirrors.baidubce.com/ubuntu/ trusty-backports/main amd64 Packages
     release v=14.04,o=Ubuntu,a=trusty-backports,n=trusty,l=Ubuntu,c=main
     origin mirrors.baidubce.com
 500 http://mirrors.baidubce.com/ubuntu/ trusty-updates/universe Translation-en
......

Not recommended 解释：预发布软件源，处于 alpha 测试阶段，不建议使用。
参考：
https://cloud.tencent.com/developer/ask/sof/117119243
https://askubuntu.com/questions/49691/what-is-the-proposed-repository