更新期间出错

Question

当我尝试更新我的 14.04 ubuntu 时它排序

A problem occurred during the update. 
This is usually some sort of network problem, 
please check your network connection and retry.

W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/natty-backports/main/source/Sources  404  Not Found [IP: 193.206.139.34 80]
, W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/natty-backports/restricted/source/Sources  404  Not Found [IP: 193.206.139.34 80]
, W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/natty-backports/universe/source/Sources  404  Not Found [IP: 193.206.139.34 80]
, W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/natty-backports/multiverse/source/Sources  404  Not Found [IP: 193.206.139.34 80]
, E:Some index files failed to download. They have been ignored, or old ones used instead.

我几年前用 11.04 磁盘安装了它，我认为它在 EOL 更新方面存在一些问题...有人知道如何修复它吗？

谢谢！！

Answer 1

您必须首先从此路径中删除旧的 apt列表文件：

/var/lib/apt/lists/

然后更新apt：

sudo apt-get update