Ubuntu更新源问题终于解决了
原文地址：http://chenrongya.blog.163.com/blog/static/8747419620143185103297/
不同的网络状况连接以下源的速度不同, 建议在添加前手动验证以下源的连接速度(ping下就行),选择最快的源可以节省大批下载时间。
首先备份源列表:
sudo cp /etc/apt/sources.list /etc/apt/sources.list_backup
而后用gedit或其他编辑器打开:
sudo gedit /etc/apt/sources.list
sudo kate /etc/apt/sources.list
sudo mousepad /etc/apt/sources.list
sudo leafpad /etc/apt/sources.list (13.04版)
从下面列表中选择合适的源，替换掉文件中所有的内容，保存编辑好的文件:
注意：一定要选对版本
然后，刷新列表:
sudo apt-get update
注意：一定要执行刷新
源列表
Trusty(14.04)版本
Ubuntu 官方更新服务器(欧洲，此为官方源，国内较慢，但无同步延迟问题，电信、移动/铁通、联通等公网用户可以使用)：
deb http://archive.ubuntu.com/ubuntu/ trusty main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse
Ubuntu官方提供的其他软件(第三方闭源软件等)：
deb http://archive.canonical.com/ubuntu/ trusty partner
deb http://extras.ubuntu.com/ubuntu/ trusty main
骨头兄亲自搭建并维护的 Ubuntu 源(该源位于浙江杭州百兆共享宽带的电信机房)，包含 Deepin 等镜像：
deb http://ubuntu.srt.cn/ubuntu/ trusty main restricted universe multiverse
deb http://ubuntu.srt.cn/ubuntu/ trusty-security main restricted universe multiverse
deb http://ubuntu.srt.cn/ubuntu/ trusty-updates main restricted universe multiverse
deb http://ubuntu.srt.cn/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://ubuntu.srt.cn/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://ubuntu.srt.cn/ubuntu/ trusty main restricted universe multiverse
deb-src http://ubuntu.srt.cn/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://ubuntu.srt.cn/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://ubuntu.srt.cn/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://ubuntu.srt.cn/ubuntu/ trusty-backports main restricted universe multiverse
网易163更新服务器(广东广州电信/联通千兆双线接入)，包含其他开源镜像：
deb http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multiverse
搜狐更新服务器(山东联通千兆接入，官方中国大陆地区镜像跳转至此) ，包含其他开源镜像：
deb http://mirrors.sohu.com/ubuntu/ trusty main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ trusty-backports main restricted universe multiverse
LupaWorld 更新服务器(浙江杭州电信/联通双线服务器)，包含其他开源镜像：
deb http://mirror.lupaworld.com/ubuntu trusty main restricted universe multiverse
deb http://mirror.lupaworld.com/ubuntu trusty-security main restricted universe multiverse
deb http://mirror.lupaworld.com/ubuntu trusty-updates main restricted universe multiverse
deb http://mirror.lupaworld.com/ubuntu trusty-backports main restricted universe multiverse
deb http://mirror.lupaworld.com/ubuntu trusty-proposed main restricted universe multiverse
deb-src http://mirror.lupaworld.com/ubuntu trusty main restricted universe multiverse
deb-src http://mirror.lupaworld.com/ubuntu trusty-security main restricted universe multiverse
deb-src http://mirror.lupaworld.com/ubuntu trusty-updates main restricted universe multiverse
deb-src http://mirror.lupaworld.com/ubuntu trusty-backports main restricted universe multiverse
deb-src http://mirror.lupaworld.com/ubuntu trusty-proposed main restricted universe multiverse
常州贝特康姆软件技术有限公司 更新服务器(江苏常州电信服务器)，包含其他开源镜像。
( CN99域名 系 “常州市亚科技术有限公司” 所注册，但此公司与常州贝特康姆的法人代表和营业地址相同。所以本镜像实际即原 CN99。但现在 CN99镜像的域名已改为跳转至网易镜像):
deb http://centos.bitcomm.cn/ubuntu trusty main restricted universe multiverse
deb http://centos.bitcomm.cn/ubuntu trusty-security main restricted universe multiverse
deb http://centos.bitcomm.cn/ubuntu trusty-updates main restricted universe multiverse
deb http://centos.bitcomm.cn/ubuntu trusty-backports main restricted universe multiverse
deb http://centos.bitcomm.cn/ubuntu trusty-proposed main restricted universe multiverse
deb-src http://centos.bitcomm.cn/ubuntu trusty main restricted universe multiverse
deb-src http://centos.bitcomm.cn/ubuntu trusty-security main restricted universe multiverse
deb-src http://centos.bitcomm.cn/ubuntu trusty-updates main restricted universe multiverse
deb-src http://centos.bitcomm.cn/ubuntu trusty-backports main restricted universe multiverse
deb-src http://centos.bitcomm.cn/ubuntu trusty-proposed main restricted universe multiverse
以下为有教育网接入的服务器(推荐教育网用户使用，部分非教育网用户也有可观的速度。教育网用户请优先使用IPv6地址。
中国科学技术大学更新服务器(位于合肥，千兆教育网接入，百兆电信/联通线路智能路由)，由中科大Linux 用户协会和中科大学网络信息中心维护，包含其他开源镜像，Deepin 官方服务器 实际亦指向此处：
deb http://debian.ustc.edu.cn/ubuntu/ trusty main multiverse restricted universe
deb http://debian.ustc.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe
deb http://debian.ustc.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe
deb http://debian.ustc.edu.cn/ubuntu/ trusty-security main multiverse restricted universe
deb http://debian.ustc.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe
deb-src http://debian.ustc.edu.cn/ubuntu/ trusty main multiverse restricted universe
deb-src http://debian.ustc.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe
deb-src http://debian.ustc.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe
deb-src http://debian.ustc.edu.cn/ubuntu/ trusty-security main multiverse restricted universe
deb-src http://debian.ustc.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe
IPv6-Only 地址
deb http://mirrors6.ustc.edu.cn/ubuntu/ trusty main multiverse restricted universe
deb http://mirrors6.ustc.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe
deb http://mirrors6.ustc.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe
deb http://mirrors6.ustc.edu.cn/ubuntu/ trusty-security main multiverse restricted universe
deb http://mirrors6.ustc.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe
deb-src http://mirrors6.ustc.edu.cn/ubuntu/ trusty main multiverse restricted universe
deb-src http://mirrors6.ustc.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe
deb-src http://mirrors6.ustc.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe
deb-src http://mirrors6.ustc.edu.cn/ubuntu/ trusty-security main multiverse restricted universe
deb-src http://mirrors6.ustc.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe
清华大学更新服务器，(教育网核心节点百兆接入，已计划提高到千兆)由清华大学学生网管会维护。包含其他开源镜像：
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty main restricted universe multiverse
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-backports main restricted universe multiverse
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-proposed main restricted universe multiverse
IPv4-Only 地址
deb http://mirrors.4.tuna.tsinghua.edu.cn/ubuntu/ trusty main restricted universe multiverse
deb http://mirrors.4.tuna.tsinghua.edu.cn/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.4.tuna.tsinghua.edu.cn/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.4.tuna.tsinghua.edu.cn/ubuntu/ trusty-backports main restricted universe multiverse
deb http://mirrors.4.tuna.tsinghua.edu.cn/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirrors.4.tuna.tsinghua.edu.cn/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.4.tuna.tsinghua.edu.cn/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirrors.4.tuna.tsinghua.edu.cn/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.4.tuna.tsinghua.edu.cn/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.4.tuna.tsinghua.edu.cn/ubuntu/ trusty-proposed main restricted universe multiverse
IPv6-Only 地址
deb http://mirrors.6.tuna.tsinghua.edu.cn/ubuntu/ trusty main multiverse restricted universe
deb http://mirrors.6.tuna.tsinghua.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe
deb http://mirrors.6.tuna.tsinghua.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe
deb http://mirrors.6.tuna.tsinghua.edu.cn//ubuntu/ trusty-security main multiverse restricted universe
deb http://mirrors.6.tuna.tsinghua.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe
deb-src http://mirrors.6.tuna.tsinghua.edu.cn/ubuntu/ trusty main multiverse restricted universe
deb-src http://mirrors.6.tuna.tsinghua.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe
deb-src http://mirrors.6.tuna.tsinghua.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe
deb-src http://mirrors.6.tuna.tsinghua.edu.cn/ubuntu/ trusty-security main multiverse restricted universe
deb-src http://mirrors.6.tuna.tsinghua.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe
北京交通大学更新服务器(教育网/电信百兆接入)，由北京交通大学信息中心赞助，包含其他开源镜像。
(域名中的 bjtu 可以替换为 njtu ，即北交旧名“北方交通大学”对应域名) ：
deb http://mirror.bjtu.edu.cn/ubuntu/ trusty main multiverse restricted universe
deb http://mirror.bjtu.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe
deb http://mirror.bjtu.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe
deb http://mirror.bjtu.edu.cn/ubuntu/ trusty-security main multiverse restricted universe
deb http://mirror.bjtu.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe
deb-src http://mirror.bjtu.edu.cn/ubuntu/ trusty main multiverse restricted universe
deb-src http://mirror.bjtu.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe
deb-src http://mirror.bjtu.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe
deb-src http://mirror.bjtu.edu.cn/ubuntu/ trusty-security main multiverse restricted universe
deb-src http://mirror.bjtu.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe
IPv6-Only 地址
deb http://mirror6.bjtu.edu.cn/ubuntu/ trusty main multiverse restricted universe
deb http://mirror6.bjtu.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe
deb http://mirror6.bjtu.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe
deb http://mirror6.bjtu.edu.cn/ubuntu/ trusty-security main multiverse restricted universe
deb http://mirror6.bjtu.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe
deb-src http://mirror6.bjtu.edu.cn/ubuntu/ trusty main multiverse restricted universe
deb-src http://mirror6.bjtu.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe
deb-src http://mirror6.bjtu.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe
deb-src http://mirror6.bjtu.edu.cn/ubuntu/ trusty-security main multiverse restricted universe
deb-src http://mirror6.bjtu.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe
北京理工大学更新服务器(仅教育网可以访问)，包含其他开源镜像：
deb http://mirror.bit.edu.cn/ubuntu/ trusty main restricted universe multiverse
deb http://mirror.bit.edu.cn/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirror.bit.edu.cn/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirror.bit.edu.cn/ubuntu/ trusty-backports main restricted universe multiverse
deb http://mirror.bit.edu.cn/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirror.bit.edu.cn/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirror.bit.edu.cn/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirror.bit.edu.cn/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirror.bit.edu.cn/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirror.bit.edu.cn/ubuntu/ trusty-proposed main restricted universe multiverse
IPv6-Only 地址
deb http://mirror.bit6.edu.cn/ubuntu/ trusty main restricted universe multiverse
deb http://mirror.bit6.edu.cn/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirror.bit6.edu.cn/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirror.bit6.edu.cn/ubuntu/ trusty-backports main restricted universe multiverse
deb http://mirror.bit6.edu.cn/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirror.bit6.edu.cn/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirror.bit6.edu.cn/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirror.bit6.edu.cn/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirror.bit6.edu.cn/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirror.bit6.edu.cn/ubuntu/ trusty-proposed main restricted universe multiverse
天津大学更新服务器，由天津大学信息与网络协会和天津大学自由软件联盟维护，包含其他开源镜像 (校外限 IPv6 访问)
(域名可以替换为 jx.tju.zyrj.org 或 jx6.tju.zyrj.org)
deb http://mirror.tju.edu.cn/ubuntu/ trusty main restricted universe multiverse
deb http://mirror.tju.edu.cn/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirror.tju.edu.cn/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirror.tju.edu.cn/ubuntu/ trusty-backports main restricted universe multiverse
deb http://mirror.tju.edu.cn/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirror.tju.edu.cn/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirror.tju.edu.cn/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirror.tju.edu.cn/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirror.tju.edu.cn/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirror.tju.edu.cn/ubuntu/ trusty-proposed main restricted universe multiverse
青岛大学更新服务器(教育网/山东青岛移动专线双线服务器)，由 OSQDU维护，位于青岛大学。包含开源镜像和Opera、马克思主义文库等其他镜像。：
deb http://mirror.qdu.edu.cn/ubuntu trusty main restricted universe multiverse
deb http://mirror.qdu.edu.cn/ubuntu trusty-security main restricted universe multiverse
deb http://mirror.qdu.edu.cn/ubuntu trusty-updates main restricted universe multiverse
deb http://mirror.qdu.edu.cn/ubuntu trusty-backports main restricted universe multiverse
deb http://mirror.qdu.edu.cn/ubuntu trusty-proposed main restricted universe multiverse
deb-src http://mirror.qdu.edu.cn/ubuntu trusty main restricted universe multiverse
deb-src http://mirror.qdu.edu.cn/ubuntu trusty-security main restricted universe multiverse
deb-src http://mirror.qdu.edu.cn/ubuntu trusty-updates main restricted universe multiverse
deb-src http://mirror.qdu.edu.cn/ubuntu trusty-backports main restricted universe multiverse
deb-src http://mirror.qdu.edu.cn/ubuntu trusty-proposed main restricted universe multiverse
东北大学更新服务器，包含其他开源镜像：
deb http://ftp.neu.edu.cn/mirrors/ubuntu/ trusty main multiverse restricted universe
deb http://ftp.neu.edu.cn/mirrors/ubuntu/ trusty-backports main multiverse restricted universe
deb http://ftp.neu.edu.cn/mirrors/ubuntu/ trusty-proposed main multiverse restricted universe
deb http://ftp.neu.edu.cn/mirrors/ubuntu/ trusty-security main multiverse restricted universe
deb http://ftp.neu.edu.cn/mirrors/ubuntu/ trusty-updates main multiverse restricted universe
deb-src http://ftp.neu.edu.cn/mirrors/ubuntu/ trusty main multiverse restricted universe
deb-src http://ftp.neu.edu.cn/mirrors/ubuntu/ trusty-backports main multiverse restricted universe
deb-src http://ftp.neu.edu.cn/mirrors/ubuntu/ trusty-proposed main multiverse restricted universe
deb-src http://ftp.neu.edu.cn/mirrors/ubuntu/ trusty-security main multiverse restricted universe
deb-src http://ftp.neu.edu.cn/mirrors/ubuntu/ trusty-updates main multiverse restricted universe
IPv6-Only 地址
deb http://ftp.neu6.edu.cn/mirrors/ trusty main multiverse restricted universe
deb http://ftp.neu6.edu.cn/mirrors/ trusty-backports main multiverse restricted universe
deb http://ftp.neu6.edu.cn/mirrors/ trusty-proposed main multiverse restricted universe
deb http://ftp.neu6.edu.cn/mirrors/ trusty-security main multiverse restricted universe
deb http://ftp.neu6.edu.cn/mirrors/ trusty-updates main multiverse restricted universe
deb-src http://ftp.neu6.edu.cn/mirrors/ trusty main multiverse restricted universe
deb-src http://ftp.neu6.edu.cn/mirrors/ trusty-backports main multiverse restricted universe
deb-src http://ftp.neu6.edu.cn/mirrors/ trusty-proposed main multiverse restricted universe
deb-src http://ftp.neu6.edu.cn/mirrors/ trusty-security main multiverse restricted universe
deb-src http://ftp.neu6.edu.cn/mirrors/ trusty-updates main multiverse restricted universe
哈尔滨工业大学更新服务器，包含其他开源镜像：
deb http://run.hit.edu.cn/ubuntu/ trusty main restricted universe multiverse
deb http://run.hit.edu.cn/ubuntu/ trusty-security main restricted universe multiverse
deb http://run.hit.edu.cn/ubuntu/ trusty-updates main restricted universe multiverse
deb http://run.hit.edu.cn/ubuntu/ trusty-backports main restricted universe multiverse
deb http://run.hit.edu.cn/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://run.hit.edu.cn/ubuntu/ trusty main restricted universe multiverse
deb-src http://run.hit.edu.cn/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://run.hit.edu.cn/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://run.hit.edu.cn/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://run.hit.edu.cn/ubuntu/ trusty-proposed main restricted universe multiverse
IPv6-Only地址
deb http://run6.hit.edu.cn/ubuntu/ trusty main restricted universe multiverse
deb http://run6.hit.edu.cn/ubuntu/ trusty-security main restricted universe multiverse
deb http://run6.hit.edu.cn/ubuntu/ trusty-updates main restricted universe multiverse
deb http://run6.hit.edu.cn/ubuntu/ trusty-backports main restricted universe multiverse
deb http://run6.hit.edu.cn/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://run6.hit.edu.cn/ubuntu/ trusty main restricted universe multiverse
deb-src http://run6.hit.edu.cn/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://run6.hit.edu.cn/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://run6.hit.edu.cn/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://run6.hit.edu.cn/ubuntu/ trusty-proposed main restricted universe multiverse
大连理工大学更新服务器，包含其他开源镜像：
( IPv4/v6 Both )
deb http://mirror.dlut.edu.cn/ubuntu/ trusty main restricted universe multiverse
deb http://mirror.dlut.edu.cn/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirror.dlut.edu.cn/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirror.dlut.edu.cn/ubuntu/ubuntu trusty-backports main restricted universe multiverse
deb http://mirror.dlut.edu.cn/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirror.dlut.edu.cn/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirror.dlut.edu.cn/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirror.dlut.edu.cn/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirror.dlut.edu.cn/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirror.dlut.edu.cn/ubuntu/ trusty-proposed main restricted universe multiverse
上海交通大学更新服务器(教育网千兆接入，联通/电信线路情况不详)，包含其他开源镜像：
deb http://ftp.sjtu.edu.cn/ubuntu/ trusty main multiverse restricted universe
deb http://ftp.sjtu.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe
deb http://ftp.sjtu.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe
deb http://ftp.sjtu.edu.cn/ubuntu/ trusty-security main multiverse restricted universe
deb http://ftp.sjtu.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe
deb-src http://ftp.sjtu.edu.cn/ubuntu/ trusty main multiverse restricted universe
deb-src http://ftp.sjtu.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe
deb-src http://ftp.sjtu.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe
deb-src http://ftp.sjtu.edu.cn/ubuntu/ trusty-security main multiverse restricted universe
deb-src http://ftp.sjtu.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe
IPv6-Only 地址
deb http://ftp6.sjtu.edu.cn/ubuntu/ trusty main multiverse restricted universe
deb http://ftp6.sjtu.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe
deb http://ftp6.sjtu.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe
deb http://ftp6.sjtu.edu.cn/ubuntu/ trusty-security main multiverse restricted universe
deb http://ftp6.sjtu.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe
deb-src http://ftp6.sjtu.edu.cn/ubuntu/ trusty main multiverse restricted universe
deb-src http://ftp6.sjtu.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe
deb-src http://ftp6.sjtu.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe
deb-src http://ftp6.sjtu.edu.cn/ubuntu/ trusty-security main multiverse restricted universe
deb-src http://ftp6.sjtu.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe
厦门大学更新服务器，由厦门大学信息与网络中心维护，包含其他开源镜像：
( IPv4/v6 Both )
deb http://mirrors.xmu.edu.cn/ubuntu/archive/ trusty main restricted universe multiverse
deb http://mirrors.xmu.edu.cn/ubuntu/archive/ trusty-backports restricted universe multiverse
deb http://mirrors.xmu.edu.cn/ubuntu/archive/ trusty-proposed main restricted universe multiverse
deb http://mirrors.xmu.edu.cn/ubuntu/archive/ trusty-security main restricted universe multiverse
deb http://mirrors.xmu.edu.cn/ubuntu/archive/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.xmu.edu.cn/ubuntu/archive/ trusty main restricted universe multiverse
deb-src http://mirrors.xmu.edu.cn/ubuntu/archive/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.xmu.edu.cn/ubuntu/archive/ trusty-proposed main restricted universe multiverse
deb-src http://mirrors.xmu.edu.cn/ubuntu/archive/ trusty-security main restricted universe multiverse
deb-src http://mirrors.xmu.edu.cn/ubuntu/archive/ trusty-updates main restricted universe multiverse
成都市电子科技大学更新服务器，由电子科大学生宿舍网管会维护。仅包括 Ubuntu 镜像：
( IPv4-Only )
(如下列地址不通，可换用 uestc.edu.cn 域名尝试)
deb http://ubuntu.dormforce.net/ubuntu/ trusty main multiverse restricted universe
deb http://ubuntu.dormforce.net/ubuntu/ trusty-backports main multiverse restricted universe
deb http://ubuntu.dormforce.net/ubuntu/ trusty-proposed main multiverse restricted universe
deb http://ubuntu.dormforce.net/ubuntu/ trusty-security main multiverse restricted universe
deb http://ubuntu.dormforce.net/ubuntu/ trusty-updates main multiverse restricted universe
deb-src http://ubuntu.dormforce.net/ubuntu/ trusty main multiverse restricted universe
deb-src http://ubuntu.dormforce.net/ubuntu/ trusty-backports main multiverse restricted universe
deb-src http://ubuntu.dormforce.net/ubuntu/ trusty-proposed main multiverse restricted universe
deb-src http://ubuntu.dormforce.net/ubuntu/ trusty-security main multiverse restricted universe
deb-src http://ubuntu.dormforce.net/ubuntu/ trusty-updates main multiverse restricted universe
兰州大学更新服务器，由兰大开源社区维护，包含其他开源镜像：
deb http://mirror.lzu.edu.cn/ubuntu/ trusty main multiverse restricted universe
deb http://mirror.lzu.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe
deb http://mirror.lzu.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe
deb http://mirror.lzu.edu.cn/ubuntu/ trusty-security main multiverse restricted universe
deb http://mirror.lzu.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe
deb-src http://mirror.lzu.edu.cn/ubuntu/ trusty main multiverse restricted universe
deb-src http://mirror.lzu.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe
deb-src http://mirror.lzu.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe
deb-src http://mirror.lzu.edu.cn/ubuntu/ trusty-security main multiverse restricted universe
deb-src http://mirror.lzu.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe
以下为大陆地区外的源
香港中文大学更新服务器，由香港中文大学资讯科技服务处维护，包含其他开源镜像：
deb http://ftp.cuhk.edu.hk/pub/Linux/ubuntu trusty main restricted universe multiverse
deb http://ftp.cuhk.edu.hk/pub/Linux/ubuntu trusty-security main restricted universe multiverse
deb http://ftp.cuhk.edu.hk/pub/Linux/ubuntu trusty-updates main restricted universe multiverse
deb http://ftp.cuhk.edu.hk/pub/Linux/ubuntu trusty-backports main restricted universe multiverse
deb http://ftp.cuhk.edu.hk/pub/Linux/ubuntu trusty-proposed main restricted universe multiverse
deb-src http://ftp.cuhk.edu.hk/pub/Linux/ubuntu trusty main restricted universe multiverse
deb-src http://ftp.cuhk.edu.hk/pub/Linux/ubuntu trusty-security main restricted universe multiverse
deb-src http://ftp.cuhk.edu.hk/pub/Linux/ubuntu trusty-updates main restricted universe multiverse
deb-src http://ftp.cuhk.edu.hk/pub/Linux/ubuntu trusty-backports main restricted universe multiverse
deb-src http://ftp.cuhk.edu.hk/pub/Linux/ubuntu trusty-proposed main restricted universe
台湾的官方源。速度有时甚至快于内地的，包含 Debian 等其他镜像：
deb http://tw.archive.ubuntu.com/ubuntu trusty main restricted universe multiverse
deb http://tw.archive.ubuntu.com/ubuntu trusty-security main restricted universe multiverse
deb http://tw.archive.ubuntu.com/ubuntu trusty-updates main restricted universe multiverse
deb http://tw.archive.ubuntu.com/ubuntu trusty-backports main restricted universe multiverse
deb http://tw.archive.ubuntu.com/ubuntu trusty-proposed main restricted universe multiverse
deb-src http://tw.archive.ubuntu.com/ubuntu trusty main restricted universe multiverse
deb-src http://tw.archive.ubuntu.com/ubuntu trusty-security main restricted universe multiverse
deb-src http://tw.archive.ubuntu.com/ubuntu trusty-updates main restricted universe multiverse
deb-src http://tw.archive.ubuntu.com/ubuntu trusty-backports main restricted universe multiverse
deb-src http://tw.archive.ubuntu.com/ubuntu trusty-proposed main restricted universe multiverse
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