ubuntu更换国内源

1.备份原来的源sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak

2.更换源

 sudo getdit /etc/apt/sources.list

阿里源（复制以下内容，替换原内容）

 deb http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse 

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

3.更新源

sudo apt-get update更新软件

sudo apt-get upgrade

2020-07-22 00:40:23

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