Ubuntu 12.04 Software Source Configuration

USTC Linux Software Source configuration address:

https://lug.ustc.edu.cn/repogen/

Copy the software source for Ubuntu 12.04 below

Deb Http://mirrors.ustc.edu.cn/ubuntu/precise main restricted universe multiverse Deb http://mirrors.ustc.edu.cn/ Ubuntu/precise-security main restricted universe multiverse Deb Http://mirrors.ustc.edu.cn/ubuntu/precise-updates Main restricted Universe Multiverse Deb http://mirrors.ustc.edu.cn/ubuntu/precise-proposed main restricted universe Multiverse Deb Http://mirrors.ustc.edu.cn/ubuntu/precise-backports main restricted universe multiverse deb-src http:// Mirrors.ustc.edu.cn/ubuntu/precise main restricted universe multiverse deb-src http://mirrors.ustc.edu.cn/ubuntu/ Precise-security main restricted universe Multiverse deb-src Http://mirrors.ustc.edu.cn/ubuntu/precise-updates main Restricted Universe Multiverse deb-src http://mirrors.ustc.edu.cn/ubuntu/precise-proposed main restricted universe Multiverse deb-src http://mirrors.ustc.edu.cn/ubuntu/precise-backports main restricted universe multiverse

1. First back up a copy of sources.list to prevent configuration failure (XXX is user name)

Cp-i/etc/apt/sources.list/home/xxx/downloads/sources.list

2. Open/etc/apt/sources.list, add the above source at the beginning of the file

sudo gedit/etc/sources.list

3. Update Source list information

sudo apt-get update