Ubuntu18.04：更换阿里源_ubuntu18.04阿里源-优快云博客

本文详细介绍了如何在Ubuntu18.04系统中更换软件源至阿里云镜像的过程。包括备份原有源地址、替换为阿里云提供的镜像地址及更新软件包列表等步骤。

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1、首先备份之前的源地址。在/etc/apt/目录下。

root@ubuntu:/etc/apt# cp sources.list sources.list_back

然后：

root@ubuntu:/etc/apt# rm sources.list
root@ubuntu:/etc/apt# vi sources.list

2、修改源文件内容为：

deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse

3、使用如下命令，更新源。

sudo apt-get update
sudo apt-get upgrade