AWS Ubuntu 11.04 无法 apt-get 更新/升级

Question

首先，让我知道自从我升级这个特定的服务器已经有一段时间了。

当我执行sudo apt-get update大多数端点时，似乎都可以正常到达。然而，有一些相当令人不安的失误：

W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/natty-security/main/source/Sources  404  Not Found [IP: 91.189.92.190 80]

W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/natty-security/universe/source/Sources  404  Not Found [IP: 91.189.92.190 80]

W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/natty-security/main/binary-amd64/Packages  404  Not Found [IP: 91.189.92.190 80]

W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/natty-security/universe/binary-amd64/Packages  404  Not Found [IP: 91.189.92.190 80]

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

如果我尝试继续前进，sudo apt-get upgrade我会收到大量如下所示的错误，并且没有任何更新：

Err http://us-east-1.ec2.archive.ubuntu.com/ubuntu/ natty-updates/main libc6 amd64 2.13-0ubuntu13.2
403  Forbidden

我的服务器源列表指向错误的服务器还是什么？

Answer 1

根据Ubuntu 版本列表，Natty Narwhal 于 2012 年 10 月 28 日停产，不再受支持。

这是公告。