1. 安裝源 修改/etc/apt/sources.list,注掉官方源,使用以下教育網源: deb http://mirror9.net9.org/ubuntu/gutsy main multiverse restricted universe deb http://mirror9.net9.org/ubuntu/gutsy-security main multiverse restricted universe deb http://mirror9.net9.org/ubuntu/gutsy-updates main multiverse restricted universe deb http://mirror9.net9.org/ubuntu/gutsy-backports main multiverse restricted universe deb http://mirror9.net9.org/ubuntu/gutsy-proposed main multiverse restricted universe deb http://mirror9.net9.org/ubuntu-cn/gutsy main multiverse restricted universe bleeding