ubuntu 12.04 source.list 源更新
官方源: 1 #deb cdrom:[Ubuntu 12.04 LTS _Precise Pangolin_ - Release i386 (20120423)]/ precise main restricted 2 3 # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to 4 # newer versions of the distribution. 5 deb http://us.archive.ubuntu.com/ubuntu/ precise main restricted 6 deb-s.