Ubuntu18.04 下改apt源为阿里云源

1、备份原有apt源文件

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

2、查看系统版本代号

lsb_release -c
           

3、修改系统的sources.list文件

sudo vim /etc/apt/sources.list
           

添加一下内容到文件最前面

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
           

 arm64架构的请使用下面的源

deb [arch=amd64,i386] https://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src [arch=amd64,i386] https://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse

deb [arch=amd64,i386] https://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src [arch=amd64,i386] https://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse

deb [arch=amd64,i386] https://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src [arch=amd64,i386] https://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse

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

deb [arch=amd64,i386] https://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src [arch=amd64,i386] https://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
           

4、更新源

sudo apt-get update
           

5、更新软件包

sudo apt-get upgrade