在Linux操作系统下去掉光盘源的实用技巧

# vi /etc/apt/sources.list

去掉光盘源，并增加non-free contrib，最后可能是这样的：

deb http://debian.cn99.com/debian/ stable main non-free contrib

deb-src http://debian.cn99.com/debian/ stable main non-free contrib

#deb http://ftp.hk.debian.org/debian stable main non-free contrib

#deb-src http://ftp.hk.debian.org/debian stable main non-free contrib

deb http://security.debian.org/ stable/updates main non-free contrib

deb-src http://security.debian.org/ stable/updates main non-free contrib

然后运行

# aptitude update

# aptitude upgrade