Ubuntu20.04如何更换国内源-阿里云源

1.备份源文件

bash 复制代码
cp /etc/apt/sources.list /etc/apt/sources.list.bak

2.打开源文件,注释默认的源

bash 复制代码
vim /etc/apt/sources.list
bash 复制代码
## 注释原本内容
# deb http://mirrors.ivolces.com/ubuntu/ focal main restricted universe multiverse
# deb-src http://mirrors.ivolces.com/ubuntu/ focal main restricted universe multiverse

# deb http://mirrors.ivolces.com/ubuntu/ focal-security main restricted universe multiverse
# deb-src http://mirrors.ivolces.com/ubuntu/ focal-security main restricted universe multiverse

# deb http://mirrors.ivolces.com/ubuntu/ focal-updates main restricted universe multiverse
# deb-src http://mirrors.ivolces.com/ubuntu/ focal-updates main restricted universe multiverse

# deb http://mirrors.ivolces.com/ubuntu/ focal-proposed main restricted universe multiverse
# deb-src http://mirrors.ivolces.com/ubuntu/ focal-proposed main restricted universe multiverse

# deb http://mirrors.ivolces.com/ubuntu/ focal-backports main restricted universe multiverse
# deb-src http://mirrors.ivolces.com/ubuntu/ focal-backports main restricted universe multiverse

## 添加新内容

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

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

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

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

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

3.保存退出ESC+:wq!

4.更新源

bash 复制代码
apt-get update

5.更新系统软件

bash 复制代码
apt-get dist-upgrade
apt-get upgrade
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