ubuntu replace domestic image

1. backup

    cd 	/etc/apt
    cp sources.list sources.list.bakup
   

2. Modify the source to Tsinghua source

    sed -i 's/archive.ubuntu.com/mirrors.aliyun.com/g' sources.list
   

3. Update software source

    apt-get update
   

4. Other sources are as follows:

   mirrors.ustc.edu.cn University of Science and Technology of China
   mirrors.163.com 163
   mirrors.aliyun.com Alibaba Cloud