ubuntu 修改安装源

您可以使用以下命令将 Ubuntu 的软件更新源更改为国内的镜像源：

1.备份您的源列表文件

sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak

2.打开源列表文件

sudo nano /etc/apt/sources.list

3.将其中的内容全部注释掉，然后将下面的内容复制进去：

#阿里云

deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse

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

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

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

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

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

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

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

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

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

4.保存并退出文件

Ctrl + O

Ctrl + X

5.更新源列表

sudo apt update

现在您已经成功更改了Ubuntu的软件更新源为阿里云镜像源。