源

一般用自带的源就可以,
由于国内没有CDN镜像,如果觉得慢,可以使用国内镜像源(自行百度).

ubuntu-wiki-源列表

源路径

/etc/apt/sources.list

22.04

deb http://cn.archive.ubuntu.com/ubuntu/ jammy main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ jammy-updates main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ jammy-backports main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ jammy-security main restricted universe multi

20.04

deb http://cn.archive.ubuntu.com/ubuntu/ focal main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ focal-updates main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ focal-backports main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ focal-security main restricted universe multi

18.04

deb http://cn.archive.ubuntu.com/ubuntu/ bionic main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ bionic-backports main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ bionic-security main restricted universe multiverse

16.04

deb http://cn.archive.ubuntu.com/ubuntu/ xenial main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ xenial-updates main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ xenial-security main restricted universe multiverse

清华镜像

清华ubuntu源镜像地址