ubuntu12更换西电源

deb http://linux.xidian.edu.cn/mirrors/ubuntu/ precise main restricted universe multiverse
#deb-src http://linux.xidian.edu.cn/mirrors/ubuntu/ precise main restricted universe multiverse

deb http://linux.xidian.edu.cn/mirrors/ubuntu/ precise-security main restricted universe multiverse
#deb-src http://linux.xidian.edu.cn/mirrors/ubuntu/ precise-security main restricted universe multiverse

deb http://linux.xidian.edu.cn/mirrors/ubuntu/ precise-updates main restricted universe multiverse
#deb-src http://linux.xidian.edu.cn/mirrors/ubuntu/ precise-updates main restricted universe multiverse

#deb http://linux.xidian.edu.cn/mirrors/ubuntu/ precise-backports main restricted universe multiverse
#deb-src http://linux.xidian.edu.cn/mirrors/ubuntu/ precise-backports main restricted universe multiverse

#deb http://linux.xidian.edu.cn/mirrors/ubuntu/ precise-proposed main restricted universe multiverse
#deb-src http://linux.xidian.edu.cn/mirrors/ubuntu/ precise-proposed main restricted universe multiverse

ubuntu12更换西电源

原文：https://www.cnblogs.com/xieldy/p/12153028.html