清华源
https://mirrors.tuna.tsinghua.edu.cn/help/ubuntu/ ubuntu 14.04 官方源# deb cdrom:[Ubuntu 14.04.4 LTS _Trusty Tahr_ - Release amd64 (20160217.1)]/ trusty main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.deb http://cn.archive.ubuntu.com/ubuntu/ trusty main restricteddeb-src http://cn.archive.ubuntu.com/ubuntu/ trusty main restricted## Major bug fix updates produced after the final release of the
## distribution.deb http://cn.archive.ubuntu.com/ubuntu/ trusty-updates main restricteddeb-src http://cn.archive.ubuntu.com/ubuntu/ trusty-updates main restricted## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any## review or updates from the Ubuntu security team.deb http://cn.archive.ubuntu.com/ubuntu/ trusty universedeb-src http://cn.archive.ubuntu.com/ubuntu/ trusty universedeb http://cn.archive.ubuntu.com/ubuntu/ trusty-updates universedeb-src http://cn.archive.ubuntu.com/ubuntu/ trusty-updates universe## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to## your rights to use the software. Also, please note that software in## multiverse WILL NOT receive any review or updates from the Ubuntu## security team.deb http://cn.archive.ubuntu.com/ubuntu/ trusty multiversedeb-src http://cn.archive.ubuntu.com/ubuntu/ trusty multiversedeb http://cn.archive.ubuntu.com/ubuntu/ trusty-updates multiversedeb-src http://cn.archive.ubuntu.com/ubuntu/ trusty-updates multiverse## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes## newer versions of some applications which may provide useful features.## Also, please note that software in backports WILL NOT receive any review## or updates from the Ubuntu security team.deb http://cn.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiversedeb-src http://cn.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiversedeb http://security.ubuntu.com/ubuntu trusty-security main restricted
deb-src http://security.ubuntu.com/ubuntu trusty-security main restricteddeb http://security.ubuntu.com/ubuntu trusty-security universedeb-src http://security.ubuntu.com/ubuntu trusty-security universedeb http://security.ubuntu.com/ubuntu trusty-security multiversedeb-src http://security.ubuntu.com/ubuntu trusty-security multiverse## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.## This software is not part of Ubuntu, but is offered by Canonical and the## respective vendors as a service to Ubuntu users.# deb http://archive.canonical.com/ubuntu trusty partner# deb-src http://archive.canonical.com/ubuntu trusty partner## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.deb http://extras.ubuntu.com/ubuntu trusty maindeb-src http://extras.ubuntu.com/ubuntu trusty main
阿里源
# deb cdrom:[Ubuntu 16.04 LTS _Xenial Xerus_ - Release amd64 (20160420.1)]/ xenial main restricted
deb-src http://archive.ubuntu.com/ubuntu xenial main restricted #Added by software-propertiesdeb http://mirrors.aliyun.com/ubuntu/ xenial main restricteddeb-src http://mirrors.aliyun.com/ubuntu/ xenial main restricted multiverse universe #Added by software-propertiesdeb http://mirrors.aliyun.com/ubuntu/ xenial-updates main restricteddeb-src http://mirrors.aliyun.com/ubuntu/ xenial-updates main restricted multiverse universe #Added by software-propertiesdeb http://mirrors.aliyun.com/ubuntu/ xenial universedeb http://mirrors.aliyun.com/ubuntu/ xenial-updates universedeb http://mirrors.aliyun.com/ubuntu/ xenial multiversedeb http://mirrors.aliyun.com/ubuntu/ xenial-updates multiversedeb http://mirrors.aliyun.com/ubuntu/ xenial-backports main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ xenial-backports main restricted universe multiverse #Added by software-propertiesdeb http://archive.canonical.com/ubuntu xenial partnerdeb-src http://archive.canonical.com/ubuntu xenial partnerdeb http://mirrors.aliyun.com/ubuntu/ xenial-security main restricteddeb-src http://mirrors.aliyun.com/ubuntu/ xenial-security main restricted multiverse universe #Added by software-propertiesdeb http://mirrors.aliyun.com/ubuntu/ xenial-security universedeb http://mirrors.aliyun.com/ubuntu/ xenial-security multiverse
网易源
deb http://mirrors.163.com/ubuntu/ precise-updates main restricted
deb-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 multiverse
中科大源
deb http://mirrors.ustc.edu.cn/ubuntu/ precise-updates main restricted
deb-src http://mirrors.ustc.edu.cn/ubuntu/ precise-updates main restricteddeb http://mirrors.ustc.edu.cn/ubuntu/ precise universedeb-src http://mirrors.ustc.edu.cn/ubuntu/ precise universedeb http://mirrors.ustc.edu.cn/ubuntu/ precise-updates universedeb-src http://mirrors.ustc.edu.cn/ubuntu/ precise-updates universedeb http://mirrors.ustc.edu.cn/ubuntu/ precise multiversedeb-src http://mirrors.ustc.edu.cn/ubuntu/ precise multiversedeb http://mirrors.ustc.edu.cn/ubuntu/ precise-updates multiversedeb-src http://mirrors.ustc.edu.cn/ubuntu/ precise-updates multiversedeb http://mirrors.ustc.edu.cn/ubuntu/ precise-backports main restricted universe multiversedeb-src http://mirrors.ustc.edu.cn/ubuntu/ precise-backports main restricted universe multiversedeb http://security.ubuntu.com/ubuntu precise-security main restricted
deb-src http://security.ubuntu.com/ubuntu precise-security main restricteddeb http://security.ubuntu.com/ubuntu precise-security universedeb-src http://security.ubuntu.com/ubuntu precise-security universedeb http://security.ubuntu.com/ubuntu precise-security multiversedeb-src http://security.ubuntu.com/ubuntu precise-security multiverse
参考：
https://blog.csdn.net/ke7in1314/article/details/79424121