Ubuntu apt-get報錯

昨天晚上更新源，竟然報錯了。

zcidcs@ubuntu:~$ sudo apt-get upgrade
[sudo] password for zcidcs: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
zcidcs@ubuntu:~$ sudo apt-get update
Err http://cn.archive.ubuntu.com trusty InRelease
  
Err http://security.ubuntu.com trusty-security InRelease
  
Err http://cn.archive.ubuntu.com trusty-updates InRelease
  
Err http://cn.archive.ubuntu.com trusty-backports InRelease
  
Err http://security.ubuntu.com trusty-security Release.gpg
  Could not resolve 'security.ubuntu.com'
Err http://cn.archive.ubuntu.com trusty Release.gpg
  Could not resolve 'cn.archive.ubuntu.com'
Err http://cn.archive.ubuntu.com trusty-updates Release.gpg
  Could not resolve 'cn.archive.ubuntu.com'
Err http://cn.archive.ubuntu.com trusty-backports Release.gpg
  Could not resolve 'cn.archive.ubuntu.com'
Reading package lists... Done
W: Failed to fetch http://cn.archive.ubuntu.com/ubuntu/dists/trusty/InRelease  

W: Failed to fetch http://cn.archive.ubuntu.com/ubuntu/dists/trusty-updates/InRelease  

W: Failed to fetch http://cn.archive.ubuntu.com/ubuntu/dists/trusty-backports/InRelease  

W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/trusty-security/InRelease  

W: Failed to fetch http://cn.archive.ubuntu.com/ubuntu/dists/trusty/Release.gpg  Could not resolve 'cn.archive.ubuntu.com'

W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/trusty-security/Release.gpg  Could not resolve 'security.ubuntu.com'

W: Failed to fetch http://cn.archive.ubuntu.com/ubuntu/dists/trusty-updates/Release.gpg  Could not resolve 'cn.archive.ubuntu.com'

W: Failed to fetch http://cn.archive.ubuntu.com/ubuntu/dists/trusty-backports/Release.gpg  Could not resolve 'cn.archive.ubuntu.com'

W: Some index files failed to download. They have been ignored, or old ones used instead.
 

解決方案：

 

zcidcs@ubuntu:~$ sudo vi  /etc/resolvconf/resolv.conf.d/base
添加這兩行
nameserver 8.8.8.8
nameserver 8.8.4.4

而後

zcidcs@ubuntu:~$ sudo resolvconf -u

再查看下

zcidcs@ubuntu:~$ 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 OVERWRITTEN
nameserver 8.8.8.8
nameserver 8.8.4.4

最後執行

sudo apt-get update

若是仍是錯誤，就要檢查網絡配置了。

/etc/network/interfaces

 

OK  解決