apt-get 无法连接到 Ubuntu 档案

Question

我今天刚刚安装了新版本的 Ubuntu 19.10，我决定做的第一件事是安装 GNU Screen，使用sudo apt-get install screen. 我的输出是：

Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package screen

我认为软件包档案没有完全更新，因为它是全新安装，所以我尝试了sudo apt-get update. 这是我得到的：

Get:1 http://security.ubuntu.com/ubuntu eoan-security InRelease [97.5 kB]      
Err:2 http://au.archive.ubuntu.com/ubuntu eoan InRelease
  Cannot initiate the connection to au.archive.ubuntu.com:80 (2001:388:30bc:cafe::beef). - connect (101: Network is unreachable) Could not connect to au.archive.ubuntu.com:80 (202.158.214.106), connection timed out
Err:3 http://au.archive.ubuntu.com/ubuntu eoan-updates InRelease   
  Cannot initiate the connection to au.archive.ubuntu.com:80 (2001:388:30bc:cafe::beef). - connect (101: Network is unreachable)
Err:4 http://au.archive.ubuntu.com/ubuntu eoan-backports InRelease
  Cannot initiate the connection to au.archive.ubuntu.com:80 (2001:388:30bc:cafe::beef). - connect (101: Network is unreachable)
Fetched 97.5 kB in 31s (3,106 B/s)
Reading package lists... Done
Building dependency tree       
Reading state information... Done
All packages are up to date.
W: Failed to fetch http://au.archive.ubuntu.com/ubuntu/dists/eoan/InRelease  Cannot initiate the connection to au.archive.ubuntu.com:80 (2001:388:30bc:cafe::beef). - connect (101: Network is unreachable) Could not connect to au.archive.ubuntu.com:80 (202.158.214.106), connection timed out
W: Failed to fetch http://au.archive.ubuntu.com/ubuntu/dists/eoan-updates/InRelease  Cannot initiate the connection to au.archive.ubuntu.com:80 (2001:388:30bc:cafe::beef). - connect (101: Network is unreachable)
W: Failed to fetch http://au.archive.ubuntu.com/ubuntu/dists/eoan-backports/InRelease  Cannot initiate the connection to au.archive.ubuntu.com:80 (2001:388:30bc:cafe::beef). - connect (101: Network is unreachable)
W: Some index files failed to download. They have been ignored, or old ones used instead.

我真的不知道为什么会这样做，除了一些首次使用的小问题？计算机肯定已连接到互联网，因为我是从那台机器上写的，我尝试在重新启动后运行命令，但它仍然给出错误。我似乎根本无法连接到 au.archive.ubuntu.com。ping au.archive.ubuntu.com只是坐在那里没有反应。如果有人可以提供帮助，那就太好了！如果需要任何额外信息，我很乐意将其编辑到问题中。

Answer 1

我刚刚在评论者的帮助下解决了这个问题。我必须转到“软件和更新”菜单并将“下载自：”菜单更改为主服务器。澳大利亚服务器似乎确实存在临时问题，而我的系统没有任何问题。

对于服务器安装，请参阅如何将 Ubuntu Server 中的镜像从区域更改为主？

Answer 2

我有同样的问题，

$ sudo apt update 
  Could not connect to in.archive.ubuntu.com:80 (*2403:8940:ffff::f*), connection timed out Could not connect to in.archive.ubuntu.com:80 (103.97.84.254), connection timed out
Err:8 http://in.archive.ubuntu.com/ubuntu bionic-updates InRelease
  Unable to connect to in.archive.ubuntu.com:http:
Err:9 http://in.archive.ubuntu.com/ubuntu bionic-backports InRelease
  Unable to connect to in.archive.ubuntu.com:http:

编辑/etc/apt/sources.list对我有用。要编辑，运行

visudo /etc/apt/sources.list

在那里你只需要全部替换http://**xx**.archive.ubuntu.com/ubuntu...为http://archive.ubuntu.com/ubuntu ...

就是这样。重试

sudo apt update

Answer 3

在 ubunto 服务器中将 Dns 更改为 8.8.8.8

echo nameserver 8.8.8.8 | sudo tee /etc/resolv.conf

有用