Ubuntu 12.04 Update Source

Reprinted from: http://www.cnblogs.com/eastson/archive/2012/08/24/2654163.html

1, first backup Ubuntu12.04 source list

Cp/etc/apt/sources.list/etc/apt/sources.list.backup (Backup under current source list)

2. Modify the update source

12.04 Source list file)

3. Replace the list in the list below

163 source

Deb http://Mirrors.163.com/ubuntu/precise Main RESTRICTEDDEB-SRC http://Mirrors.163.com/ubuntu/precise Main Restricteddeb http://Mirrors.163.com/ubuntu/precise-updates Main RESTRICTEDDEB-SRC http://Mirrors.163.com/ubuntu/precise-updates Main Restricteddeb http://Mirrors.163.com/ubuntu/precise universedeb-src http://Mirrors.163.com/ubuntu/precise Universedeb http://Mirrors.163.com/ubuntu/precise-updates universedeb-src http://Mirrors.163.com/ubuntu/precise-updates Universedeb http://Mirrors.163.com/ubuntu/precise multiversedeb-src http://Mirrors.163.com/ubuntu/precise Multiversedeb http://Mirrors.163.com/ubuntu/precise-updates multiversedeb-src http://Mirrors.163.com/ubuntu/precise-updates Multiversedeb http://Mirrors.163.com/ubuntu/precise-backports main restricted Universe MULTIVERSEDEB-SRC http://Mirrors.163.com/ubuntu/precise-backports main restricted Universe Multiversedeb http://Mirrors.163.com/ubuntu/precise-security Main RESTRICTEDDEB-SRC http://mirrors.163.com/ubuntu/precise-security main restricteddeb http://mirrors.163.com/ubuntu/ Precise-security universedeb-src http://mirrors.163.com/ubuntu/precise-security universedeb http:// mirrors.163.com/ubuntu/precise-security multiversedeb-src http://mirrors.163.com/ubuntu/ Precise-security multiversedeb http://extras.ubuntu.com/ubuntu precise maindeb-src http://  Extras.ubuntu.com/ubuntu Precise main             

Sohu Source

Deb http://Mirrors.sohu.com/ubuntu/precise Main RESTRICTEDDEB-SRC http://Mirrors.sohu.com/ubuntu/precise Main Restricteddeb http://Mirrors.sohu.com/ubuntu/precise-updates Main RESTRICTEDDEB-SRC http://Mirrors.sohu.com/ubuntu/precise-updates Main Restricteddeb http://Mirrors.sohu.com/ubuntu/precise universedeb-src http://Mirrors.sohu.com/ubuntu/precise Universedeb http://Mirrors.sohu.com/ubuntu/precise-updates universedeb-src http://Mirrors.sohu.com/ubuntu/precise-updates Universedeb http://Mirrors.sohu.com/ubuntu/precise multiversedeb-src http://Mirrors.sohu.com/ubuntu/precise Multiversedeb http://Mirrors.sohu.com/ubuntu/precise-updates multiversedeb-src http://Mirrors.sohu.com/ubuntu/precise-updates Multiversedeb http://Mirrors.sohu.com/ubuntu/precise-backports main restricted Universe MULTIVERSEDEB-SRC http://Mirrors.sohu.com/ubuntu/precise-backports main restricted Universe Multiversedeb http://Mirrors.sohu.com/ubuntu/precise-security Main RESTRICTEDDEB-SRC http://mirrors.sohu.com/ubuntu/precise-security main restricteddeb http://mirrors.sohu.com/ubuntu/ Precise-security universedeb-src http://mirrors.sohu.com/ubuntu/precise-security universedeb http:// mirrors.sohu.com/ubuntu/precise-security multiversedeb-src http://mirrors.sohu.com/ubuntu/ Precise-security multiversedeb http://extras.ubuntu.com/ubuntu precise maindeb-src http://  Extras.ubuntu.com/ubuntu Precise main             

Ubuntu.cn99.com Source (Recommended):

Deb http://ubuntu.cn99.com/ubuntu/precise main restricted universe Multiversedeb http://  Ubuntu.cn99.com/ubuntu/precise-updates main restricted Universe Multiversedeb http://Ubuntu.cn99.com/ubuntu /precise-security main restricted Universe Multiversedeb http://Ubuntu.cn99.com/ubuntu/precise-backports Main Restricted Universe Multiversedeb http://ubuntu.cn99.com/ubuntu-cn/precise main restricted universe Multiverse         

Education Network Source
If you are a college student, you can use the Campus Network/Education Network, is to use the resources of Education network, especially support IPv6, that update speed to press trillion forget.

#电子科技大学

Deb http://Ubuntu.uestc.edu.cn/ubuntu/precise main restricted Universe Multiversedeb http://Ubuntu.uestc.edu.cn/ubuntu/precise-backports main restricted Universe Multiversedeb http://ubuntu.uestc.edu.cn/ubuntu/precise-proposed main restricted Universe Multiversedeb http://Ubuntu.uestc.edu.cn/ubuntu/precise-security main restricted Universe Multiversedeb http://ubuntu.uestc.edu.cn/ubuntu/precise-updates Main Restricted universe multiversedeb-src http:// Ubuntu.uestc.edu.cn/ubuntu/precise main restricted universe multiversedeb-src http:// ubuntu.uestc.edu.cn/ubuntu/precise-backports main restricted universe MULTIVERSEDEB-SRC http://ubuntu.uestc.edu.cn/ubuntu /precise-proposed main restricted universe multiversedeb-src http://ubuntu.uestc.edu.cn/ubuntu/precise-security main restricted universe multiversedeb-src http://ubuntu.uestc.edu.cn/ubuntu/precise-updates main restricted universe multiverse 

#中国科技大学

Deb http://Debian.ustc.edu.cn/ubuntu/precise main restricted Universe Multiversedeb http://Debian.ustc.edu.cn/ubuntu/precise-backports Restricted Universe Multiversedeb http://debian.ustc.edu.cn/ubuntu/precise-proposed main restricted Universe Multiversedeb http://Debian.ustc.edu.cn/ubuntu/precise-security main restricted Universe Multiversedeb http://debian.ustc.edu.cn/ubuntu/precise-updates Main Restricted universe multiversedeb-src http:// Debian.ustc.edu.cn/ubuntu/precise main restricted universe multiversedeb-src http://< Span style= "color: #008000;" >debian.ustc.edu.cn/ubuntu/precise-backports main restricted universe multiversedeb-src http://debian.ustc.edu.cn/ubuntu/precise-proposed main restricted universe MULTIVERSEDEB-SRC http://debian.ustc.edu.cn/ubuntu/ Precise-security main restricted universe multiversedeb-src http://debian.ustc.edu.cn/ubuntu/precise-updates main restricted universe multiverse      

#北京理工大学

Deb http://Mirror.bjtu.edu.cn/ubuntu/precise main Multiverse restricted Universedeb http://Mirror.bjtu.edu.cn/ubuntu/precise-backports main Multiverse restricted Universedeb http://mirror.bjtu.edu.cn/ubuntu/precise-proposed main Multiverse restricted Universedeb http://Mirror.bjtu.edu.cn/ubuntu/precise-security main Multiverse restricted Universedeb http://mirror.bjtu.edu.cn/ubuntu/precise-updates Main Multiverse restricted universedeb-src http:// Mirror.bjtu.edu.cn/ubuntu/precise main multiverse restricted universedeb-src http://< Span style= "color: #008000;" >mirror.bjtu.edu.cn/ubuntu/precise-backports main multiverse restricted universedeb-src http://mirror.bjtu.edu.cn/ubuntu/precise-proposed main multiverse restricted UNIVERSEDEB-SRC http://mirror.bjtu.edu.cn/ubuntu/ Precise-security main multiverse restricted universedeb-src http://mirror.bjtu.edu.cn/ubuntu/precise-updates main Multiverse restricted universe      

4. Update source

sudo apt-get update

Ubuntu 12.04 Update Source