命令：
sudo vi /etc/apt/sources.list.d/default.list
添加软件源：
http://archive.kylinos.cn/kylin/KYLIN-ALL/
#4.0.2桌面版本: deb http://archive.kylinos.cn/kylin/KYLIN-ALL 4.0.2-desktop main restricted universe multiverse #4.0.2-sp1桌面版本: deb http://archive.kylinos.cn/kylin/KYLIN-ALL 4.0.2sp1-desktop main restricted universe multiverse #4.0.2-sp2桌面版本: deb http://archive.kylinos.cn/kylin/KYLIN-ALL 4.0.2sp2-desktop main restricted universe multiverse #4.0.2服务器版本: deb http://archive.kylinos.cn/kylin/KYLIN-ALL 4.0.2-server main restricted universe multiverse #4.0.2-sp1服务器版本: deb http://archive.kylinos.cn/kylin/KYLIN-ALL 4.0.2sp1-server main restricted universe multiverse #4.0.2-sp2服务器版本: deb http://archive.kylinos.cn/kylin/KYLIN-ALL 4.0.2sp2-server main restricted universe multiverse #4.0.2-sp2 FT2000+服务器版本: deb http://archive.kylinos.cn/kylin/KYLIN-ALL 4.0.2sp2-server-ft2000 main restricted universe multiverse #4.0.2-sp3桌面版本: deb http://archive.kylinos.cn/kylin/KYLIN-ALL 4.0.2sp3-desktop main restricted universe multiverse
更新
sudo apt-get update
