ubuntu18.04 | 配置apt国内镜像源

文章目录

一、为什么要重新配置国内镜像源

  配置apt国内镜像源可以加快软件包的下载速度，提高软件安装的效率。如果使用默认的官方源，由于网络原因，下载速度可能会很慢，甚至无法下载。而使用国内的镜像源，可以避免这些问题，提高软件下载的速度和成功率。

二、配置步骤

1. 首先，先备份旧的源（在修改文件前先备份文件是一个好的习惯）liujie@liujie-virtual-machine-18:~$ sudosu[sudo] liujie 的密码：root@liujie-virtual-machine-18:/home/liujie# sudo cp /etc/apt/sources.list /etc/apt/sources.list.bakroot@liujie-virtual-machine-18:/home/liujie# ls -l /etc/apt/sources.list*-rw-rw-r-- 1 root root 28868月 714:18 /etc/apt/sources.list-rw-r--r-- 1 root root 288611月 923:48 /etc/apt/sources.list.bak-rw-rw-r-- 1 root root 29068月 714:18 /etc/apt/sources.list.save
2. 设置新的镜像源root@liujie-virtual-machine-18:/home/liujie# vim /etc/apt/sources.list
3. 将默认的源删除掉，添加国内的镜像源，例如：清华源、阿里源、中科大源等> 在vim中删除文件中所有内容的指令是> > :1,$d> > > 其中，> > :> > 表示进入命令模式， > > 1,$> > 表示从第一行到最后一行，> > d> > 表示删除。执行该指令后，文件中所有内容都会被删除。清华源：deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiversedeb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiversedeb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiversedeb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiversedeb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiversedeb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiversedeb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiversedeb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse阿里源：deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse中科大源：deb https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse> 没有必要全部添加，选择一个即可
4. 更新软件包列表并升级已安装的软件包root@liujie-virtual-machine-18:/home/liujie# apt-get update``````root@liujie-virtual-machine-18:/home/liujie# apt-get upgrade