ubuntu 20.04 LTS 更换阿里云源
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第一步:先备份下原始源:
sudo cp /etc/apt/source.list /etc/apt/source.list.backup
第二步:修改文件
sudo vim /etc/apt/source.list
清除原有的,替换以下源
deb http://mirrors.aliyun.com/ubuntu/ focal main restricted deb http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted deb http://mirrors.aliyun.com/ubuntu/ focal universe deb http://mirrors.aliyun.com/ubuntu/ focal-updates universe deb http://mirrors.aliyun.com/ubuntu/ focal multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-updates multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-security main restricted deb http://mirrors.aliyun.com/ubuntu/ focal-security universe deb http://mirrors.aliyun.com/ubuntu/ focal-security multiverse
保存下,即可执行更新
sudo apt update
sudo apt upgrade
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