今天在安装软件的时候出现了Package has no installation candidate的问题,如: # apt-get install <packagename>Reading package lists... DoneBuilding dependency tree... DonePackage aptitude is not available, but is referred to by another package.This may mean that the pac
#HUST deb http://mirrors.hust.edu.cn/ubuntu/ xenial main restricted universe multiverse deb http://mirrors.hust.edu.cn/ubuntu/ xenial-security main restricted universe multiverse deb http://mirrors.hust.edu.cn/ubuntu/ xenial-updates main restricted u
官方源: #deb cdrom:[Ubuntu 12.04 LTS _Precise Pangolin_ - Release i386 (20120423)]/ precise main restricted # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://us.archive.ubuntu.com/