我要评论01.简介
ubuntu作为广泛使用的linux发行版，其默认的镜像源可能因为地理位置和网络问题导致下载速度缓慢。本文将指导用户如何根据自己所在的地理位置，选择并设置最适合的国内镜像源。
02.查询版本
使用命令 lsb_release -a 查询自己的系统版本号
icai@csjmove:~$ lsb_release -a no lsb modules are available. distributor id: ubuntu description: ubuntu 22.04.3 lts release: 22.04 codename: jammy icai@csjmove:~$
注意codename 这个发行版代号， ubuntu的每个发行版都拥有一个独特的代号，开发代号需要与镜像源对应。
03.镜像源（阿里云）
（1）ubuntu 14.04 lts (trusty) (eol)
deb https://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse ## not recommended # deb https://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse # deb-src https://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
（2）ubuntu 16.04 lts (xenial) (eol)
deb https://mirrors.aliyun.com/ubuntu/ xenial main deb-src https://mirrors.aliyun.com/ubuntu/ xenial main deb https://mirrors.aliyun.com/ubuntu/ xenial-updates main deb-src https://mirrors.aliyun.com/ubuntu/ xenial-updates main deb https://mirrors.aliyun.com/ubuntu/ xenial universe deb-src https://mirrors.aliyun.com/ubuntu/ xenial universe deb https://mirrors.aliyun.com/ubuntu/ xenial-updates universe deb-src https://mirrors.aliyun.com/ubuntu/ xenial-updates universe deb https://mirrors.aliyun.com/ubuntu/ xenial-security main deb-src https://mirrors.aliyun.com/ubuntu/ xenial-security main deb https://mirrors.aliyun.com/ubuntu/ xenial-security universe deb-src https://mirrors.aliyun.com/ubuntu/ xenial-security universe
（3）ubuntu 18.04 lts (bionic)
deb https://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse # deb https://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse # deb-src https://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
（4）ubuntu 20.04 lts (focal)
deb https://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse # deb https://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse # deb-src https://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse ```（5）ubuntu 22.04 lts (jammy) ```shell deb https://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse # deb https://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiverse # deb-src https://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse
（5） ubuntu 23.04 (lunar)
deb https://mirrors.aliyun.com/ubuntu/ lunar main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ lunar main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ lunar-security main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ lunar-security main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ lunar-updates main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ lunar-updates main restricted universe multiverse # deb https://mirrors.aliyun.com/ubuntu/ lunar-proposed main restricted universe multiverse # deb-src https://mirrors.aliyun.com/ubuntu/ lunar-proposed main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ lunar-backports main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ lunar-backports main restricted universe multiverse
（6）ubuntu 24.04 (noble)
deb https://mirrors.aliyun.com/ubuntu/ noble main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ noble main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ noble-security main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ noble-security main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ noble-updates main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ noble-updates main restricted universe multiverse # deb https://mirrors.aliyun.com/ubuntu/ noble-proposed main restricted universe multiverse # deb-src https://mirrors.aliyun.com/ubuntu/ noble-proposed main restricted universe multiverse deb https://mirrors.aliyun.com/ubuntu/ noble-backports main restricted universe multiverse deb-src https://mirrors.aliyun.com/ubuntu/ noble-backports main restricted universe multiverse
04.设置方法
（1）备份
sudo cp /etc/apt/sources.list /etc/apt/sources.list.back
（2）编辑
vim /etc/apt/sources.list
（3）更新
sudo apt update sudo apt upgrade
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