ubuntu server替换更新源

1 首先对源列表做好备份:

sudo cp /etc/apt/sources.list /etc/apt/sources.list_backup

2 根据系统不同选择合适的编辑编辑器打开原列表:

sudo vii /etc/apt/sources.list

3.用找到的更新源替换原先的。

4.收尾工作：

sudo apt-get update

如果发现无法正常更新，请使用备份还原：

sudo cp /etc/apt/sources.list_backup /etc/apt/sources.list

 

备注：

我在替换更新源的时候遇到以下情况

Err http://cn.archive.ubuntu.com precise InRelease
  
Err http://security.ubuntu.com precise-security InRelease
  
Err http://cn.archive.ubuntu.com precise-updates InRelease
  
Err http://cn.archive.ubuntu.com precise Release.gpg
  Temporary failure resolving 'cn.archive.ubuntu.com'
Err http://security.ubuntu.com precise-security Release.gpg
  Temporary failure resolving 'security.ubuntu.com'
Err http://cn.archive.ubuntu.com precise-updates Release.gpg
  Temporary failure resolving 'cn.archive.ubuntu.com'
Reading package lists... Done
W: Failed to fetch http://cn.archive.ubuntu.com/ubuntu/dists/precise/InRelease  

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

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

W: Failed to fetch http://cn.archive.ubuntu.com/ubuntu/dists/precise/Release.gpg  Temporary failure resolving 'cn.archive.ubuntu.com'

W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/precise-security/Release.gpg  Temporary failure resolving 'security.ubuntu.com'

W: Failed to fetch http://cn.archive.ubuntu.com/ubuntu/dists/precise-updates/Release.gpg  Temporary failure resolving 'cn.archive.ubuntu.com'

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

 解决方法：

1.查看增加的源是否正确

2.查看网络是否正常（我这由于dns没有指定，导致了以上的错误）

评论

1 楼 px_dn 2014-03-05  

谢谢！！