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前言

??本文將針對(duì)安裝好的Ubuntu系統(tǒng)進(jìn)行換源操作，將系統(tǒng)內(nèi)的國外源更換為國內(nèi)源（阿里源，網(wǎng)易源，清華源，中科大源等）。

一、換源目的

使用國外源弊端：
?? ??????1.軟件無法下載，找不到軟件下載包
??? ?????2.容易出現(xiàn)下載錯(cuò)誤，中途停止等情況
??? ?????3.使用國外的源下載 / 更新速度十分緩慢

?? 由于Ubuntu系統(tǒng)安裝默認(rèn)源為國外源（服務(wù)器位于國外），導(dǎo)致國內(nèi)用戶在開發(fā)的過程中會(huì)遇到一系列問題，為避免該系列問題，需要我們對(duì)安裝好的Ubuntu系統(tǒng)進(jìn)行換源操作。

二、換源步驟

源文件絕對(duì)路徑: /etc/apt/sources.list

1.在終端使用管理員權(quán)限和gedit命令打開sources.list文件

終端命令：sudo gedit /etc/apt/source.list，打開文件后如下圖所示：

2.將sources.list的內(nèi)容替換為以下任意一段國內(nèi)源

阿里源 Ubuntu 20.04版本

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

清華源 Ubuntu 20.04版本

# 默認(rèn)注釋了源碼鏡像以提高 apt update 速度，如有需要可自行取消注釋
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-security main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-security main restricted universe multiverse

# 預(yù)發(fā)布軟件源，不建議啟用
# deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-proposed main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-proposed main restricted universe multiverse

中科大源 Ubuntu 20.04版本

deb https://mirrors.ustc.edu.cn/ubuntu/ focal main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ focal main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ focal-security main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ focal-security main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ focal-proposed main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ focal-proposed main restricted universe multiverse

3.更新緩存和升級(jí)（更新源）

終端命令：sudo apt-get update （更新源）

總結(jié)

???以上就是【Linux基礎(chǔ)】Ubuntu系統(tǒng)換源的所有內(nèi)容，希望大家閱讀后都能有所收獲！原創(chuàng)不易，轉(zhuǎn)載請(qǐng)標(biāo)明出處，若文章出現(xiàn)有誤之處，歡迎讀者留言指正批評(píng)！

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