sources.list
deb cdrom:[Debian GNU/Linux 4.0 r4a _Etch_ - Official i386 NETINST Binary-1 20080804-15:10]/ etch contrib main

deb http://debian.cn99.com/debian/ etch main
deb-src http://debian.cn99.com/debian/ etch main

deb http://security.debian.org/ etch/updates main contrib
deb-src http://security.debian.org/ etch/updates main contrib


apt-get update
Ign cdrom://[Debian GNU/Linux 4.0 r4a _Etch_ - Official i386 NETINST Binary-1 20080804-15:10] etch Release.gpg
Ign cdrom://[Debian GNU/Linux 4.0 r4a _Etch_ - Official i386 NETINST Binary-1 20080804-15:10] etch Release
Ign cdrom://[Debian GNU/Linux 4.0 r4a _Etch_ - Official i386 NETINST Binary-1 20080804-15:10] etch/contrib Packages/DiffIndex
Ign cdrom://[Debian GNU/Linux 4.0 r4a _Etch_ - Official i386 NETINST Binary-1 20080804-15:10] etch/main Packages/DiffIndex
Get:1 http://security.debian.org etch/updates Release.gpg [189B]
Get:2 http://security.debian.org etch/updates Release [37.6kB]
Ign http://security.debian.org etch/updates/main Packages/DiffIndex
Ign http://security.debian.org etch/updates/contrib Packages/DiffIndex
Ign http://security.debian.org etch/updates/main Sources/DiffIndex
Ign http://security.debian.org etch/updates/contrib Sources/DiffIndex
Get:3 http://security.debian.org etch/updates/main Packages [374kB]
Hit http://security.debian.org etch/updates/contrib Packages
Get:4 http://security.debian.org etch/updates/main Sources [56.5kB]
Hit http://security.debian.org etch/updates/contrib Sources
Err http://debian.cn99.com etch Release.gpg
Could not connect to debian.cn99.com:80 (222.185.245.42), connection timed out
Fetched 469kB in 2m0s (3901B/s)
Failed to fetch http://debian.cn99.com/debian/dists/etch/Release.gpg Could not connect to debian.cn99.com:80 (222.185.245.42), connection timed out
Reading package lists... Done
E: Some index files failed to download, they have been ignored, or old ones used instead.
是不是debian.cn99.com 有问题？