ubuntu 12.04更新源

1、首先备份Ubuntu 11.10源列表

1

sudo cp /etc/apt/sources.list /etc/apt/sources.list.backup （备份下当前的源列表）

2、修改更新源

1

sudo gedit /etc/apt/sources.list

#台湾源

123456

deb http://tw.archive.ubuntu.com/ubuntu/ precise main universe restricted multiverse deb-src http://tw.archive.ubuntu.com/ubuntu/ precise main universe restricted multiverse deb http://tw.archive.ubuntu.com/ubuntu/ precise-security universe main multiverse restricted deb-src http://tw.archive.ubuntu.com/ubuntu/ precise-security universe main multiverse restricted deb http://tw.archive.ubuntu.com/ubuntu/ precise-updates universe main multiverse restricted deb-src http://tw.archive.ubuntu.com/ubuntu/ precise-updates universe main multiverse restricted

#网易源（速度很快）

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deb http://mirrors.163.com/ubuntu/ precise main universe restricted multiverse deb-src http://mirrors.163.com/ubuntu/ precise main universe restricted multiverse deb http://mirrors.163.com/ubuntu/ precise-security universe main multiverse restricted deb-src http://mirrors.163.com/ubuntu/ precise-security universe main multiverse restricted deb http://mirrors.163.com/ubuntu/ precise-updates universe main multiverse restricted deb http://mirrors.163.com/ubuntu/ precise-proposed universe main multiverse restricted deb-src http://mirrors.163.com/ubuntu/ precise-proposed universe main multiverse restricted deb http://mirrors.163.com/ubuntu/ precise-backports universe main multiverse restricted deb-src http://mirrors.163.com/ubuntu/ precise-backports universe main multiverse restricted deb-src http://mirrors.163.com/ubuntu/ precise-updates universe main multiverse restricted

#电子科技大学

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deb http://ubuntu.uestc.edu.cn/ubuntu/ precise main restricted universe multiverse deb http://ubuntu.uestc.edu.cn/ubuntu/ precise-backports main restricted universe multiverse deb http://ubuntu.uestc.edu.cn/ubuntu/ precise-proposed main restricted universe multiverse deb http://ubuntu.uestc.edu.cn/ubuntu/ precise-security main restricted universe multiverse deb http://ubuntu.uestc.edu.cn/ubuntu/ precise-updates main restricted universe multiverse deb-src http://ubuntu.uestc.edu.cn/ubuntu/ precise main restricted universe multiverse deb-src http://ubuntu.uestc.edu.cn/ubuntu/ precise-backports main restricted universe multiverse deb-src http://ubuntu.uestc.edu.cn/ubuntu/ precise-proposed main restricted universe multiverse deb-src http://ubuntu.uestc.edu.cn/ubuntu/ precise-security main restricted universe multiverse deb-src http://ubuntu.uestc.edu.cn/ubuntu/ precise-updates main restricted universe multiverse

#北京理工大学（真羡慕刘毅同学）

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deb http://mirror.bjtu.edu.cn/ubuntu/ precise main multiverse restricted universe deb http://mirror.bjtu.edu.cn/ubuntu/ precise-backports main multiverse restricted universe deb http://mirror.bjtu.edu.cn/ubuntu/ precise-proposed main multiverse restricted universe deb http://mirror.bjtu.edu.cn/ubuntu/ precise-security main multiverse restricted universe deb http://mirror.bjtu.edu.cn/ubuntu/ precise-updates main multiverse restricted universe deb-src http://mirror.bjtu.edu.cn/ubuntu/ precise main multiverse restricted universe deb-src http://mirror.bjtu.edu.cn/ubuntu/ precise-backports main multiverse restricted universe deb-src http://mirror.bjtu.edu.cn/ubuntu/ precise-proposed main multiverse restricted universe deb-src http://mirror.bjtu.edu.cn/ubuntu/ precise-security main multiverse restricted universe deb-src http://mirror.bjtu.edu.cn/ubuntu/ precise-updates main multiverse restricted universe

3、保存后就是

12

sudo apt-get updatesudo apt-get upgrade

经过6个月的开发周期，ubuntu 12.04 LTS (Precise Pangolin)终于发布了，这个版本是一个长期支持版本。官方正式版下载地址公布：http://releases.ubuntu.com/precise/ 完成同步的国内镜像站点（已经可以下载正式版本）： 中科大地址（同步完毕，可下载）：http://mirrors.ustc.edu.cn/ubuntu-releases/12.04/ 顺便提一下，其实unity用习惯了还是不错的