ubuntu 換源過程當中遇到的坑(一):Could not resolve 'mirrors.aliyun.com'

執行更新數據(sudo apt-get update)提示:html

Err http://mirrors.aliyun.com trusty Release.gpg
  Could not resolve 'mirrors.aliyun.com' Err http://mirrors.aliyun.com trusty-updates Release.gpg
  Could not resolve 'mirrors.aliyun.com' Err http://mirrors.aliyun.com trusty-backports Release.gpg
  Could not resolve 'mirrors.aliyun.com' Err http://mirrors.aliyun.com trusty-security Release.gpg
  Could not resolve 'mirrors.aliyun.com' Reading package lists... Done W: Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/InRelease

此時只要編輯網絡DNS配置文件便可: ubuntu

sudo gedit /etc/resolv.conf

在彈出的文本里最下面加入:網絡

cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTENfetch

nameserver 8.8.8.8 nameserver 8.8.4.4

重啓網絡：spa

sudo /etc/init.d/networking restart

再次執行3步:.net

sudo apt-get update

執行完成,而後:rest

sudo apt-get upgrade

大功告成!code

(接下來步驟,詳見此文接第5步):https://www.cnblogs.com/chenxi188/p/10620775.htmlserver

參考:https://blog.csdn.net/ronghua_liu/article/details/8609450htm

　　https://www.jianshu.com/p/486e7f9802ab