Just copy this file to sources.list
# source && source code
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ lunar main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ lunar main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ lunar-updates main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ lunar-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ lunar-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ lunar-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ lunar-security main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ lunar-security main restricted universe multiverse
# Advance distribution source, Not recommended
# deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ lunar-proposed main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ lunar-proposed main restricted universe multiverse
# source && source code
deb http://mirrors.aliyun.com/ubuntu lunar main restricted
deb http://mirrors.aliyun.com/ubuntu lunar-updates main restricted
deb http://mirrors.aliyun.com/ubuntu lunar universe
deb http://mirrors.aliyun.com/ubuntu lunar-updates universe
deb http://mirrors.aliyun.com/ubuntu lunar multiverse
deb http://mirrors.aliyun.com/ubuntu lunar-updates multiverse
deb http://mirrors.aliyun.com/ubuntu lunar-backports main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu lunar-security main restricted
deb http://cn.archive.ubuntu.com/ubuntu lunar-security universe
deb http://cn.archive.ubuntu.com/ubuntu lunar-security multiverse
