sudo cp /etc/apt/sources.list /etc/apt/sources.list_bak
sudo gedit /etc/apt/sources.list
deb http://mirrors.aliyun.com/ubuntu/ xenial main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ xenial-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ xenial-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ xenial-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ xenial-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ xenial main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-backports main restricted universe multiverse
sudo apt-get update&&sudo apt-get upgrade
##Just wait a second,and that will be ok. Good luck :) Oh,by the way,the correct ubuntu-developement-code is needed. For example,"yakkety" is ubuntu 16.10,"vivid" is ubuntu 15.04,and... yeah,that's it.
原文地址：https://www.jb51.cc/ubuntu/355965.html
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