连接SSH

安装系统完成并登陆后，输入
修改源码地址

进入apt文件夹

cd /etc/apt

备份文件

cp sources.list sources.list.bak

修改源码地址

vi sources.list

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://mirrors.163.com/ubuntu/ jammy main restricted
# deb-src http://mirrors.163.com/ubuntu/ jammy main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://mirrors.163.com/ubuntu/ jammy-updates main restricted
# deb-src http://mirrors.163.com/ubuntu/ jammy-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://mirrors.163.com/ubuntu/ jammy universe
# deb-src http://mirrors.163.com/ubuntu/ jammy universe
deb http://mirrors.163.com/ubuntu/ jammy-updates universe
# deb-src http://mirrors.163.com/ubuntu/ jammy-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://mirrors.163.com/ubuntu/ jammy multiverse
# deb-src http://mirrors.163.com/ubuntu/ jammy multiverse
deb http://mirrors.163.com/ubuntu/ jammy-updates multiverse
# deb-src http://mirrors.163.com/ubuntu/ jammy-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://mirrors.163.com/ubuntu/ jammy-backports main restricted universe multiverse
# deb-src http://mirrors.163.com/ubuntu/ jammy-backports main restricted universe multiverse

deb http://security.ubuntu.com/ubuntu jammy-security main restricted
# deb-src http://security.ubuntu.com/ubuntu jammy-security main restricted
deb http://security.ubuntu.com/ubuntu jammy-security universe
# deb-src http://security.ubuntu.com/ubuntu jammy-security universe
deb http://security.ubuntu.com/ubuntu jammy-security multiverse
# deb-src http://security.ubuntu.com/ubuntu jammy-security multiverse

# This system was installed using small removable media
# (e.g. netinst, live or single CD). The matching "deb cdrom"
# entries were disabled at the end of the installation process.
# For information about how to configure apt package sources,
# see the sources.list(5) manual.

底行模式输入命令

:1,$s/cn.archive.ubuntu.com/mirrors.163.com/g 把源码地址改为网易的国内源码地址