我正在使用 Ubuntu 13.04。当我尝试时sudo apt-get update --fix-missing，我收到了一堆 404/Not Found 和 403/Forbidden 错误，它阻止了 apt-get 大部分时间工作。
如果有帮助，我可以粘贴完整的输出，但这里只有几行可能表明问题：
Err http://us.archive.ubuntu.com quantal-backports/main i386 Packages
404 Not Found [IP: 91.189.91.23 80]
Err http://us.archive.ubuntu.com quantal-backports/restricted i386 Packages
404 Not Found [IP: 91.189.91.23 80]
Err http://us.archive.ubuntu.com quantal-backports/universe i386 Packages
404 Not Found [IP: 91.189.91.23 80]
Err http://us.archive.ubuntu.com quantal-backports/multiverse i386 Packages
404 Not Found [IP: 91.189.91.23 80]
W: Failed to fetch http://apt.basho.com/dists/quantal/main/binary-amd64/Packages 403 Forbidden
W: Failed to fetch http://apt.basho.com/dists/quantal/main/binary-i386/Packages 403 Forbidden
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/quantal/main/source/Sources 404 …apt ×1