我在执行到sudo apt-get update的时候报如下错误，看起来像是这个源连不上，请问应该如何处理？
@树老大
Get:1
http://repository.wolfram.com stable Release.gpg [836 B]
Err
http://archive.mene.za.net wheezy Release.gpg
Connection failed
Get:2
http://raspberrypi.collabora.com wheezy Release.gpg [836 B]
Hit
http://repository.wolfram.com stable Release
Hit
http://raspberrypi.collabora.com wheezy Release
Get:3
http://archive.raspberrypi.org wheezy Release.gpg [490 B]
Hit
http://repository.wolfram.com stable/non-free armhf Packages
Ign
http://archive.mene.za.net wheezy Release
Hit
http://archive.raspberrypi.org wheezy Release
Hit
http://raspberrypi.collabora.com wheezy/rpi armhf Packages
Hit
http://archive.raspberrypi.org wheezy/main armhf Packages
Ign
http://repository.wolfram.com stable/non-free Translation-en_US
Ign
http://repository.wolfram.com stable/non-free Translation-en
Ign
http://raspberrypi.collabora.com wheezy/rpi Translation-en_US
Ign
http://raspberrypi.collabora.com wheezy/rpi Translation-en
Ign
http://archive.raspberrypi.org wheezy/main Translation-en_US
Ign
http://archive.raspberrypi.org wheezy/main Translation-en
Err
http://archive.mene.za.net wheezy/contrib armhf Packages
Connection failed
Err
http://archive.mene.za.net wheezy/contrib Translation-en_US
Connection failed
Err
http://archive.mene.za.net wheezy/contrib Translation-en
Connection failed
Fetched 2,162 B in 11s (193 B/s)
W: Failed to fetch
http://archive.mene.za.net/raspbian/dists/wheezy/Release.gpg Connection failed
W: Failed to fetch
http://archive.mene.za.net/raspb ... nary-armhf/Packages Connection failed
W: Failed to fetch
http://archive.mene.za.net/raspb ... n/Translation-en_US Connection failed
W: Failed to fetch
http://archive.mene.za.net/raspb ... i18n/Translation-en Connection failed
E: Some index files failed to download. They have been ignored, or old ones used instead.
发表于 2014-7-29 19:04:08