备份原配置文件 

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

编辑配置文件（以 nano 为例）：

sudo nano /etc/apt/sources.list

清空原有内容，粘贴下方的阿里云镜像地址，注意将 jammy 换成你自己的系统代号

deb https://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse

deb https://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse

deb https://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse

deb https://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse
更新软件包列表，让系统读取新配置：

sudo apt update




	

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