树莓派安装 ubuntu 20.04 LTS 碰壁指南

su passwd root

cd /etc/netplan/

sudo vim 50-cloud-init.yaml

# This file is generated from information provided by the datasource.  Changes
# to it will not persist across an instance reboot.  To disable cloud-init's
# network configuration capabilities, write a file
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
# network: {config: disabled}
network:
    ethernets:
        eth0:
            dhcp4: true
            optional: true
    version: 2
    wifis:
      wlan0:
        dhcp4: true
        optional: true
        access-points:
              "你的无线网络名称": 
               password: "123456789"

sudo netplan try
sudo netplan apply
systemctl daemon-reload

sudo vim /etc/apt/sources.list

## Note, this file is written by cloud-init on first boot of an instance
## modifications made here will not survive a re-bundle.
## if you wish to make changes you can:
## a.) add 'apt_preserve_sources_list: true' to /etc/cloud/cloud.cfg
##     or do the same in user-data
## b.) add sources in /etc/apt/sources.list.d
## c.) make changes to template file /etc/cloud/templates/sources.list.tmpl

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

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

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu focal partner
# deb-src http://archive.canonical.com/ubuntu focal partner

#deb http://ports.ubuntu.com/ubuntu-ports focal-security main restricted
deb https://mirrors.aliyun.com/ubuntu-ports focal-security main restricted
# deb-src http://ports.ubuntu.com/ubuntu-ports focal-security main restricted
#deb http://ports.ubuntu.com/ubuntu-ports focal-security universe
deb https://mirrors.aliyun.com/ubuntu-ports focal-security universe
# deb-src http://ports.ubuntu.com/ubuntu-ports focal-security universe
#deb http://ports.ubuntu.com/ubuntu-ports focal-security multiverse
deb https://mirrors.aliyun.com/ubuntu-ports focal-security multiverse
# deb-src http://ports.ubuntu.com/ubuntu-ports focal-security multiverse

source source.list
apt get update
apt get upgrade

sudo apt install openssh-server

ufw allow ssh

sudo vim /etc/ssh/sshd_config

/PermitRootLogin

 LoginGraceTime 2m
 PermitRootLogin yes
 StrictModes yes
 #MaxAuthTries 6
 #MaxSessions 10

sudo service ssh restart

adduser your_username

wget -O install.sh http://download.bt.cn/install/install-ubuntu_6.0.sh && bash install.sh