说明：http://wiki.ubuntu.org.cn/%E6%A8%A1%E6%9D%BF:18.04source
这是18.04的，其他版本的不一样。
实际验证，清华的好用。
1、清华
#清华
#默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
#预发布软件源，不建议启用
#deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
#deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
2、 官方中国，阿里
#官方中国，阿里
deb http://cn.archive.ubuntu.com/ubuntu/ boinc main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ boinc-security main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ boinc-updates main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ boinc-backports main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ boinc-proposed main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu/ boinc main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu/ boinc-security main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu/ boinc-updates main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu/ boinc-backports main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu/ boinc-proposed main restricted universe multiverse
#Canonical 合作伙伴和附加
deb http://archive.canonical.com/ubuntu/ boinc partner
deb http://extras.ubuntu.com/ubuntu/ boinc main
3、 网易（163）
#网易
deb http://mirrors.163.com/ubuntu/ boinc main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ boinc-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ boinc-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ boinc-backports main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ boinc-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ boinc main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ boinc-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ boinc-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ boinc-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ boinc-proposed main restricted universe multiverse
4、 搜狐
#搜狐
deb http://mirrors.sohu.com/ubuntu/ boinc main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ boinc-security main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ boinc-updates main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ boinc-backports main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ boinc-proposed main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ boinc main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ boinc-security main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ boinc-updates main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ boinc-backports main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ boinc-proposed main restricted universe multiverse
5、阿里云
#阿里云
deb http://mirrors.aliyun.com/ubuntu/ boinc main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ boinc-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ boinc-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ boinc-backports main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ boinc-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ boinc main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ boinc-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ boinc-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ boinc-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ boinc-proposed main restricted universe multiverse
6、 开源镜像
#开源镜像
deb http://ubuntu.mirrors.org.cn/ boinc main restricted universe multiverse
deb http://ubuntu.mirrors.org.cn/ boinc-security main restricted universe multiverse
deb http://ubuntu.mirrors.org.cn/ boinc-updates main restricted universe multiverse
deb http://ubuntu.mirrors.org.cn/ boinc-backports main restricted universe multiverse
deb http://ubuntu.mirrors.org.cn/ boinc-proposed main restricted universe multiverse
deb-src http://ubuntu.mirrors.org.cn/ boinc main restricted universe multiverse
deb-src http://ubuntu.mirrors.org.cn/ boinc-security main restricted universe multiverse
deb-src http://ubuntu.mirrors.org.cn/ boinc-updates main restricted universe multiverse
deb-src http://ubuntu.mirrors.org.cn/ boinc-backports main restricted universe multiverse
deb-src http://ubuntu.mirrors.org.cn/ boinc-proposed main restricted universe multiverse
7、首都在线
#首都在线
deb http://mirrors.yun-idc.com/ubuntu/ boinc main restricted universe multiverse
deb http://mirrors.yun-idc.com/ubuntu/ boinc-security main restricted universe multiverse
deb http://mirrors.yun-idc.com/ubuntu/ boinc-updates main restricted universe multiverse
deb http://mirrors.yun-idc.com/ubuntu/ boinc-backports main restricted universe multiverse
deb http://mirrors.yun-idc.com/ubuntu/ boinc-proposed main restricted universe multiverse
deb-src http://mirrors.yun-idc.com/ubuntu/ boinc main restricted universe multiverse
deb-src http://mirrors.yun-idc.com/ubuntu/ boinc-security main restricted universe multiverse
deb-src http://mirrors.yun-idc.com/ubuntu/ boinc-updates main restricted universe multiverse
deb-src http://mirrors.yun-idc.com/ubuntu/ boinc-backports main restricted universe multiverse
deb-src http://mirrors.yun-idc.com/ubuntu/ boinc-proposed main restricted universe multiverse
8 、贝特康姆
#贝特康姆
deb http://centos.bitcomm.cn/ubuntu boinc main restricted universe multiverse
deb http://centos.bitcomm.cn/ubuntu boinc-security main restricted universe multiverse
deb http://centos.bitcomm.cn/ubuntu boinc-updates main restricted universe multiverse
deb http://centos.bitcomm.cn/ubuntu boinc-backports main restricted universe multiverse
deb http://centos.bitcomm.cn/ubuntu boinc-proposed main restricted universe multiverse
deb-src http://centos.bitcomm.cn/ubuntu boinc main restricted universe multiverse
deb-src http://centos.bitcomm.cn/ubuntu boinc-security main restricted universe multiverse
deb-src http://centos.bitcomm.cn/ubuntu boinc-updates main restricted universe multiverse
deb-src http://centos.bitcomm.cn/ubuntu boinc-backports main restricted universe multiverse
deb-src http://centos.bitcomm.cn/ubuntu boinc-proposed main restricted universe multiverse
9 、中科大
#中科大
deb https://mirrors.ustc.edu.cn/ubuntu/ boinc main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ boinc-security main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ boinc-updates main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ boinc-backports main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ boinc-proposed main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ boinc main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ boinc-security main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ boinc-updates main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ boinc-backports main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ boinc-proposed main restricted universe multiverse
10、 中科院
#中科院
deb http://mirrors.opencas.cn/ubuntu/ boinc main restricted universe multiverse
deb http://mirrors.opencas.cn/ubuntu/ boinc-security main restricted universe multiverse
deb http://mirrors.opencas.cn/ubuntu/ boinc-updates main restricted universe multiverse
deb http://mirrors.opencas.cn/ubuntu/ boinc-backports main restricted universe multiverse
deb http://mirrors.opencas.cn/ubuntu/ boinc-proposed main restricted universe multiverse
deb-src http://mirrors.opencas.cn/ubuntu/ boinc main restricted universe multiverse
deb-src http://mirrors.opencas.cn/ubuntu/ boinc-security main restricted universe multiverse
deb-src http://mirrors.opencas.cn/ubuntu/ boinc-updates main restricted universe multiverse
deb-src http://mirrors.opencas.cn/ubuntu/ boinc-backports main restricted universe multiverse
deb-src http://mirrors.opencas.cn/ubuntu/ boinc-proposed main restricted universe multiverse
11、 清华
#清华
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ boinc main restricted universe multiverse
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ boinc-security main restricted universe multiverse
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ boinc-updates main restricted universe multiverse
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ boinc-backports main restricted universe multiverse
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ boinc-proposed main restricted universe multiverse
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ boinc main restricted universe multiverse
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ boinc-security main restricted universe multiverse
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ boinc-updates main restricted universe multiverse
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ boinc-backports main restricted universe multiverse
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ boinc-proposed main restricted universe multiverse