这篇文章将详细介绍如何在 Ubuntu 系统中更换软件源，以提高软件包的下载速度和更新效率。这是一个非常实用的技巧，尤其适合那些经常需要更新系统和软件包的用户。<\/p>\n
\nTips<\/p>\n
本文使用 Ubuntu 20.04 进行演示，关于 Ubuntu 各版本的系统代号会在文末给出。<\/p>\n<\/blockquote>\n
镜像源更换<\/h2>\n
备份原镜像源文件<\/h3>\n
首先，备份当前的镜像源文件。这样做的目的是保证在更换过程中遇到问题时，可以快速恢复到原始状态。<\/p>\n
sudo cp \/etc\/apt\/sources.list \/etc\/apt\/sources.list.bak<\/code><\/pre>\n编辑镜像源文件<\/h3>\n
接下来，编辑
\/etc\/apt\/sources.list<\/code> 文件，将其中的镜像源地址更换为更快的镜像源。这里推荐使用阿里云镜像源。<\/p>\nsudo vim \/etc\/apt\/sources.list<\/code><\/pre>\n在打开的编辑器中，将原有的内容替换为以下内容：<\/p>\n
# Ubuntu 20.04 LTS (Focal Fossa) 镜像源\ndeb http:\/\/mirrors.aliyun.com\/ubuntu\/ focal main restricted universe multiverse\ndeb-src http:\/\/mirrors.aliyun.com\/ubuntu\/ focal main restricted universe multiverse\ndeb http:\/\/mirrors.aliyun.com\/ubuntu\/ focal-security main restricted universe multiverse\ndeb-src http:\/\/mirrors.aliyun.com\/ubuntu\/ focal-security main restricted universe multiverse\ndeb http:\/\/mirrors.aliyun.com\/ubuntu\/ focal-updates main restricted universe multiverse\ndeb-src http:\/\/mirrors.aliyun.com\/ubuntu\/ focal-updates main restricted universe multiverse\ndeb http:\/\/mirrors.aliyun.com\/ubuntu\/ focal-proposed main restricted universe multiverse\ndeb-src http:\/\/mirrors.aliyun.com\/ubuntu\/ focal-proposed main restricted universe multiverse\ndeb http:\/\/mirrors.aliyun.com\/ubuntu\/ focal-backports main restricted universe multiverse\ndeb-src http:\/\/mirrors.aliyun.com\/ubuntu\/ focal-backports main restricted universe multiverse\n\n# 清华大学镜像源（可选）\ndeb https:\/\/mirrors.tuna.tsinghua.edu.cn\/ubuntu\/ focal main restricted universe multiverse\n# deb-src https:\/\/mirrors.tuna.tsinghua.edu.cn\/ubuntu\/ focal main restricted universe multiverse\ndeb https:\/\/mirrors.tuna.tsinghua.edu.cn\/ubuntu\/ focal-updates main restricted universe multiverse\n# deb-src https:\/\/mirrors.tuna.tsinghua.edu.cn\/ubuntu\/ focal-updates main restricted universe multiverse\ndeb https:\/\/mirrors.tuna.tsinghua.edu.cn\/ubuntu\/ focal-backports main restricted universe multiverse\n# deb-src https:\/\/mirrors.tuna.tsinghua.edu.cn\/ubuntu\/ focal-backports main restricted universe multiverse\ndeb https:\/\/mirrors.tuna.tsinghua.edu.cn\/ubuntu\/ focal-security main restricted universe multiverse\n# deb-src https:\/\/mirrors.tuna.tsinghua.edu.cn\/ubuntu\/ focal-security main restricted universe multiverse multiverse<\/code><\/pre>\n更新软件包列表<\/h3>\n
完成编辑后，更新软件包列表，以确保系统能够识别新的镜像源。<\/p>\n
sudo apt update<\/code><\/pre>\nUbuntu 系统代号<\/h2>\n
\n\n
\n \nVersion<\/th>\n Code name<\/th>\n Version<\/th>\n Code name<\/th>\n Version<\/th>\n Code name<\/th>\n Version<\/th>\n Code name<\/th>\n<\/tr>\n<\/thead>\n \n 24.10<\/td>\n Oracular Oriole<\/td>\n 19.04<\/td>\n Disco Dingo<\/td>\n 14.04<\/td>\n Trusty Tahr<\/td>\n 9.04<\/td>\n Jaunty Jackalope<\/td>\n<\/tr>\n \n 24.04<\/td>\n Noble Numbat<\/td>\n 18.10<\/td>\n Cosmic Cuttlefish<\/td>\n 13.10<\/td>\n Saucy Salamander<\/td>\n 8.10<\/td>\n Intrepid Ibex<\/td>\n<\/tr>\n \n 23.10<\/td>\n Mantic Minotaur<\/td>\n 18.04<\/td>\n Bionic Beaver<\/td>\n 13.04<\/td>\n Raring Ringtail<\/td>\n 8.04<\/td>\n Hardy Heron<\/td>\n<\/tr>\n \n 23.04<\/td>\n Lunar Lobster<\/td>\n 17.10<\/td>\n Artful Aardvark<\/td>\n 12.10<\/td>\n Quantal Quetzal<\/td>\n 7.10<\/td>\n Gutsy Gibbon<\/td>\n<\/tr>\n \n 22.10<\/td>\n Kinetic Kudu<\/td>\n 17.04<\/td>\n Zesty Zapus<\/td>\n 12.04<\/td>\n Precise Pangolin<\/td>\n 7.04<\/td>\n Feisty Fawn<\/td>\n<\/tr>\n \n 22.04<\/td>\n Jammy Jellyfish<\/td>\n 16.10<\/td>\n Yakkety Yak<\/td>\n 11.10<\/td>\n Oneiric Ocelot<\/td>\n 6.10<\/td>\n Edgy Eft<\/td>\n<\/tr>\n \n 21.10<\/td>\n Impish Indri<\/td>\n 16.04<\/td>\n Xenial Xerus<\/td>\n 11.04<\/td>\n Natty Narwhal<\/td>\n 6.06<\/td>\n Dapper Drake<\/td>\n<\/tr>\n \n 21.04<\/td>\n Hirsute Hippo<\/td>\n 15.10<\/td>\n Wily Werewolf<\/td>\n 10.10<\/td>\n Maverick Meerkat<\/td>\n 5.10<\/td>\n Breezy Badger<\/td>\n<\/tr>\n \n 20.10<\/td>\n Groovy Gorilla<\/td>\n 15.04<\/td>\n Vivid Vervet<\/td>\n 10.04<\/td>\n Lucid Lynx<\/td>\n 5.04<\/td>\n Hoary Hedgehog<\/td>\n<\/tr>\n \n 20.04<\/td>\n Focal Fossa<\/td>\n 14.10<\/td>\n Utopic Unicorn<\/td>\n 9.10<\/td>\n Karmic Koala<\/td>\n 4.10<\/td>\n Warty Warthog<\/td>\n<\/tr>\n \n 19.10<\/td>\n Eoan Ermine<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":" 前言 这篇文章ळ…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[],"class_list":["post-270","post","type-post","status-publish","format-standard","hentry","category-linux"],"yoast_head":"\n
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