apt-get update出现的这是什么错误啊?

xiaopaozi

debian:/home/jacky# apt-get update
Get:1 http://debian.cn99.com testing Release.gpg [189B]
Get:2 http://debian.cn99.com testing Release [35.4kB]
Ign http://debian.cn99.com testing Release
Get:3 http://debian.cn99.com testing/main Packages [2852kB]
Get:4 ftp://sunsite.ust.hk etch Release.gpg [189B]
Get:5 ftp://sunsite.ust.hk etch Release [35.4kB]
Get:6 http://security.debian.org testing/updates Release.gpg [189B]
Get:7 http://security.debian.org testing/updates Release [18.5kB]
Ign http://security.debian.org testing/updates Release
Ign http://security.debian.org testing/updates/main Packages
Hit http://security.debian.org testing/updates/main Packages
Ign ftp://sunsite.ust.hk etch Release
Get:8 ftp://sunsite.ust.hk etch/main Packages [2853kB]
Get:9 http://debian.cn99.com testing/contrib Packages [41.7kB]
Get:10 http://debian.cn99.com testing/non-free Packages [53.5kB]
Err http://mirrors.geekbone.org etch Release.gpg
  Temporary failure resolving ‘mirrors.geekbone.org’
Get:11 ftp://sunsite.ust.hk etch/contrib Packages [41.7kB]
Get:12 ftp://sunsite.ust.hk etch/non-free Packages [53.5kB]
Fetched 5986kB in 1m40s (59.8kB/s)
Failed to fetch http://mirrors.geekbone.org/debian/dists/etch/Release.gpg  Temporary failure resolving ‘mirrors.geekbone.org’
Reading package lists... Done
W: GPG error: http://debian.cn99.com testing Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 010908312D230C5F
W: GPG error: http://security.debian.org testing/updates Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 010908312D230C5F
W: GPG error: ftp://sunsite.ust.hk etch Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 010908312D230C5F
W: You may want to run apt-get update to correct these problems
E: Some index files failed to download, they have been ignored, or old ones used instead.
提示No pubkey,这是什么意思?
我用的是etch/testing,下面是我的source.list,请各位大侠看看有什么问题?
[PHP]
deb http://security.debian.org/ testing/updates main
deb http://debian.cn99.com/debian/ testing main contrib non-free
deb ftp://sunsite.ust.hk/pub/debian/ etch main contrib non-free
deb http://people.debian.org.tw/~koster/debian/sid ./
deb http://mirrors.geekbone.org/debian/ etch main contrib
[/PHP]

wx672

Err http://mirrors.geekbone.org etch Release.gpg
Temporary failure resolving ‘mirrors.geekbone.org’

说明 mirrors.geekbone.org 连接不上。把它从你的sources.list里注释掉就行了。有cn99你也就不需要geekbone了。

W: GPG error: http://debian.cn99.com testing Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 010908312D230C5F

这是Warning而不是Error，所以你可以忽略它。觉得难受就：

  $ gpg --keyserver keyring.debian.org --recv-key 1F41B907
  $ gpg --armor --export 1F41B907 | sudo apt-key add -

想知道为什么就看看：
http://www.togaware.com/linux/survivor/Package_Archive.shtml