相关疑难解决方法(0)

最近我在旧机器上安装了旧版本的 Ubuntu。每当我尝试安装任何软件时，都会收到一条错误消息，说找不到它：

$ sudo apt-get install vlc
Reading package lists... Done               
Building dependency tree       
Reading state information... Done    
E: Couldn't find package vlc

PPA 似乎一直处于离线状态。每当我使用时sudo apt-get update，都会显示此错误：

W: Failed to fetch http://ppa.launchpad.net/ 404  Not Found

如何修复这些错误？

可能重复：
如何安装软件或从不受支持的旧版本升级？
如何使用 Ubuntu 档案修复 404 错误？

我在下载 Ubuntu 存储库时遇到问题：

$ sudo apt-get update
...
Failed to fetch
http://archive.ubuntu.com/ubuntu/dists/maverick/main/binary-amd64/Packages.gz
404  Not Found 

Failed to fetch
http://archive.ubuntu.com/ubuntu/dists/maverick/restricted/binary-amd64/Packages.gz
404  Not Found
...

我可以正常连接到服务器：

# ping archive.ubuntu.com
PING archive.ubuntu.com (91.189.92.202) 56(84) bytes of data.
64 bytes from sudice.canonical.com (91.189.92.202): icmp_req=1 ttl=52 time=149 ms
64 bytes from sudice.canonical.com (91.189.92.202): icmp_req=2 ttl=52 time=149 ms
64 bytes from sudice.canonical.com (91.189.92.202): icmp_req=3 ttl=52 time=149 ms

--- archive.ubuntu.com ping statistics ---
3 packets transmitted, 3 received, 0% packet …