raspberry pi, apt-get update slow

很奇怪，超慢，竟然要 17hr...

所以 follow : http://allaboutraspberrypi.blogspot.tw/2014/12/slow-apt-get-on-raspberry-pi.html

參考： http://www.raspbian.org/RaspbianMirrors

#deb http://mirrordirector.raspbian.org/raspbian/ wheezy main contrib non-free rpi
deb http://free.nchc.org.tw/raspbian/raspbian/ wheezy main contrib non-free rpi

這樣就OK 了。