我的源配置列表如下，

deb http://ubuntu.cnsite.org/ubuntu/ edgy main restricted universe multiverse
deb http://ubuntu.cnsite.org/ubuntu/ edgy-updates main restricted universe multiverse
deb http://ubuntu.cnsite.org/ubuntu/ edgy-backports main restricted universe multiverse
deb http://ubuntu.cnsite.org/ubuntu/ edgy-security main restricted universe multiverse
deb http://ubuntu.cnsite.org/ubuntu-cn/ edgy main multiverse restricted universe

但是最近几天的更新时，总是有问题。请问是怎么回事？有人知道吗？


#
$ sudo apt-get update
忽略 http://ubuntu.cnsite.org edgy Release.gpg
忽略 http://ubuntu.cnsite.org edgy/main Translation-zh_CN
忽略 http://ubuntu.cnsite.org edgy/restricted Translation-zh_CN
忽略 http://ubuntu.cnsite.org edgy/universe Translation-zh_CN
忽略 http://ubuntu.cnsite.org edgy/multiverse Translation-zh_CN
忽略 http://ubuntu.cnsite.org edgy-updates Release.gpg
忽略 http://ubuntu.cnsite.org edgy-updates/main Translation-zh_CN
忽略 http://ubuntu.cnsite.org edgy-updates/restricted Translation-zh_CN
忽略 http://ubuntu.cnsite.org edgy-updates/universe Translation-zh_CN
忽略 http://ubuntu.cnsite.org edgy-updates/multiverse Translation-zh_CN
忽略 http://ubuntu.cnsite.org edgy-backports Release.gpg
忽略 http://ubuntu.cnsite.org edgy-backports/main Translation-zh_CN
忽略 http://ubuntu.cnsite.org edgy-backports/restricted Translation-zh_CN
忽略 http://ubuntu.cnsite.org edgy-backports/universe Translation-zh_CN
忽略 http://ubuntu.cnsite.org edgy-backports/multiverse Translation-zh_CN
忽略 http://ubuntu.cnsite.org edgy-security Release.gpg
忽略 http://ubuntu.cnsite.org edgy-security/main Translation-zh_CN
忽略 http://ubuntu.cnsite.org edgy-security/restricted Translation-zh_CN
忽略 http://ubuntu.cnsite.org edgy-security/universe Translation-zh_CN
忽略 http://ubuntu.cnsite.org edgy-security/multiverse Translation-zh_CN
忽略 http://ubuntu.cnsite.org edgy Release.gpg
忽略 http://ubuntu.cnsite.org edgy/main Translation-zh_CN
忽略 http://ubuntu.cnsite.org edgy/multiverse Translation-zh_CN
忽略 http://ubuntu.cnsite.org edgy/restricted Translation-zh_CN
忽略 http://ubuntu.cnsite.org edgy/universe Translation-zh_CN
忽略 http://ubuntu.cnsite.org edgy Release
忽略 http://ubuntu.cnsite.org edgy-updates Release
忽略 http://ubuntu.cnsite.org edgy-backports Release
忽略 http://ubuntu.cnsite.org edgy-security Release
忽略 http://ubuntu.cnsite.org edgy Release
忽略 http://ubuntu.cnsite.org edgy/main Packages
忽略 http://ubuntu.cnsite.org edgy/restricted Packages
忽略 http://ubuntu.cnsite.org edgy/universe Packages
忽略 http://ubuntu.cnsite.org edgy/multiverse Packages
忽略 http://ubuntu.cnsite.org edgy-updates/main Packages
忽略 http://ubuntu.cnsite.org edgy-updates/restricted Packages
忽略 http://ubuntu.cnsite.org edgy-updates/universe Packages
忽略 http://ubuntu.cnsite.org edgy-updates/multiverse Packages
忽略 http://ubuntu.cnsite.org edgy-backports/main Packages
忽略 http://ubuntu.cnsite.org edgy-backports/restricted Packages
忽略 http://ubuntu.cnsite.org edgy-backports/universe Packages
忽略 http://ubuntu.cnsite.org edgy-backports/multiverse Packages
忽略 http://ubuntu.cnsite.org edgy-security/main Packages
忽略 http://ubuntu.cnsite.org edgy-security/restricted Packages
忽略 http://ubuntu.cnsite.org edgy-security/universe Packages
忽略 http://ubuntu.cnsite.org edgy-security/multiverse Packages
忽略 http://ubuntu.cnsite.org edgy/main Packages
忽略 http://ubuntu.cnsite.org edgy/multiverse Packages
忽略 http://ubuntu.cnsite.org edgy/restricted Packages
忽略 http://ubuntu.cnsite.org edgy/universe Packages
错误 http://ubuntu.cnsite.org edgy/main Packages
404 Not Found
错误 http://ubuntu.cnsite.org edgy/restricted Packages
404 Not Found
错误 http://ubuntu.cnsite.org edgy/universe Packages
404 Not Found
错误 http://ubuntu.cnsite.org edgy/multiverse Packages
404 Not Found
错误 http://ubuntu.cnsite.org edgy-updates/main Packages
404 Not Found
错误 http://ubuntu.cnsite.org edgy-updates/restricted Packages
404 Not Found
错误 http://ubuntu.cnsite.org edgy-updates/universe Packages
404 Not Found
错误 http://ubuntu.cnsite.org edgy-updates/multiverse Packages
404 Not Found
错误 http://ubuntu.cnsite.org edgy-backports/main Packages
404 Not Found
错误 http://ubuntu.cnsite.org edgy-backports/restricted Packages
404 Not Found
错误 http://ubuntu.cnsite.org edgy-backports/universe Packages
404 Not Found
错误 http://ubuntu.cnsite.org edgy-backports/multiverse Packages
404 Not Found
错误 http://ubuntu.cnsite.org edgy-security/main Packages
404 Not Found
错误 http://ubuntu.cnsite.org edgy-security/restricted Packages
404 Not Found
错误 http://ubuntu.cnsite.org edgy-security/universe Packages
404 Not Found
错误 http://ubuntu.cnsite.org edgy-security/multiverse Packages
404 Not Found
错误 http://ubuntu.cnsite.org edgy/main Packages
404 Not Found
错误 http://ubuntu.cnsite.org edgy/multiverse Packages
404 Not Found
错误 http://ubuntu.cnsite.org edgy/restricted Packages
404 Not Found
错误 http://ubuntu.cnsite.org edgy/universe Packages
404 Not Found
无法下载 http://ubuntu.cnsite.org/ubuntu/dists/e ... ackages.gz 404 Not Found
无法下载 http://ubuntu.cnsite.org/ubuntu/dists/e ... ackages.gz 404 Not Found
无法下载 http://ubuntu.cnsite.org/ubuntu/dists/e ... ackages.gz 404 Not Found
无法下载 http://ubuntu.cnsite.org/ubuntu/dists/e ... ackages.gz 404 Not Found
无法下载 http://ubuntu.cnsite.org/ubuntu/dists/e ... ackages.gz 404 Not Found
无法下载 http://ubuntu.cnsite.org/ubuntu/dists/e ... ackages.gz 404 Not Found
无法下载 http://ubuntu.cnsite.org/ubuntu/dists/e ... ackages.gz 404 Not Found
无法下载 http://ubuntu.cnsite.org/ubuntu/dists/e ... ackages.gz 404 Not Found
无法下载 http://ubuntu.cnsite.org/ubuntu/dists/e ... ackages.gz 404 Not Found
无法下载 http://ubuntu.cnsite.org/ubuntu/dists/e ... ackages.gz 404 Not Found
无法下载 http://ubuntu.cnsite.org/ubuntu/dists/e ... ackages.gz 404 Not Found
无法下载 http://ubuntu.cnsite.org/ubuntu/dists/e ... ackages.gz 404 Not Found
无法下载 http://ubuntu.cnsite.org/ubuntu/dists/e ... ackages.gz 404 Not Found
无法下载 http://ubuntu.cnsite.org/ubuntu/dists/e ... ackages.gz 404 Not Found
无法下载 http://ubuntu.cnsite.org/ubuntu/dists/e ... ackages.gz 404 Not Found
无法下载 http://ubuntu.cnsite.org/ubuntu/dists/e ... ackages.gz 404 Not Found
无法下载 http://ubuntu.cnsite.org/ubuntu-cn/dist ... ackages.gz 404 Not Found
无法下载 http://ubuntu.cnsite.org/ubuntu-cn/dist ... ackages.gz 404 Not Found
无法下载 http://ubuntu.cnsite.org/ubuntu-cn/dist ... ackages.gz 404 Not Found
无法下载 http://ubuntu.cnsite.org/ubuntu-cn/dist ... ackages.gz 404 Not Found
正在读取软件包列表... 完成
E: 有一些索引文件不能下载，它们可能被忽略了，也可能转而使用了旧的索引文件。

换吧，这个最近挂了

打不开