Raspberry pie 4B no screen installation system and networking using VNC wireless projection function

Preface

Raspberry pie on hand 4B Can't turn it on , Brush a system again , But no micro HDMI The line cannot display the screen , Unable to operate boot process , In the use of Mac For computers VNC I encountered a lot of problems when connecting to the desktop wirelessly , Fill in the hole you encounter .

preparation

• Raspberry pie 4B

• 32G Memory card

• Card reader

• fing.app

Download and burn system

Raspberry pie website ：https://www.raspberrypi.org/
Raspberry pie 4B Download the system installation package from the official website ,Mac The computer can download the system installation software .

There are many versions in the installation software , such as Ubantu, The first time you use raspberry pie, you can install the default recommended version .

Be careful , The memory card needs to use the software to format the memory card as... Before burning the image FAT32 Format .

Turn on SSH And configure Internet access

Turn on SSH

Raspberry pie is off by default ssh Of , It is necessary to start at the first startup ssh, In this way, we can pass ssh Connect VNC Create a virtual screen on the laptop screen .

Method ：
windows System ： stay boot Create a new partition named ssh.txt A blank text document , Delete the following txt suffix ;
Mac System ： Here's the problem ,Mac The system cannot delete a new text document txt The way suffixes are created ssh file , stay Mac In the system , Even if you delete txt After suffix , The file format is still txt, After inserting raspberry pie, the system will not recognize .

Pictured above , stay Mac In the system , Use ssh.txt Delete the document txt After suffix , There will also be... On the file thumbnail TXT Flags for formatting .

The right way is , Input in the terminal touch ssh , Create a new name for ssh The file of , Then copy this file / Cut to desktop . Generated in this way ssh The document will take effect .

Configure Internet access

stay boot Copy the partition ssh file , Enter the following code in the newly copied file to configure the wireless network to be connected ;

country=CN
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
 
network={
    
	ssid="ChinaNet-xxx"
	psk="12345678"
	key_mgmt=WPA-PSK
	priority=1
}

Then rename the newly copied file to wpa_supplicant.conf.

Be careful , Use Mac In the case of computers , Also do not use txt How text documents modify suffixes , This method generates wpa_supplicant.conf The document is also not valid in raspberry pie .

Insert the memory card into the raspberry pie , Access to electricity , Turn it on .

Mobile download fing.app This software ( Cell phones, raspberry pies and computers should be on the same network ), After the raspberry pie is successfully connected to the Internet , In this software can display raspberry pie ip Address ( The name is usually Generic). If not shown , This indicates that the network configuration was unsuccessful , Need to check the raspberry pie power supply 、 Network password 、 Whether the configuration file format is correct .

Input in the terminal ssh [email protected] Yours ip Address , Enter the default password for raspberry pie raspberry, Boot successful ！

After entering the system, you will be prompted to change your password （ This step is not necessary ）.

VNC Display desktop

We use SSH What is the purpose of login ？ you 're right , Raspberry pie, of course VNC function .

1） Enter the command at the terminal sudo raspi-config, Open the raspberry pie system configuration interface .

2） choice ：–> 3 Interface Options Configure connections to peripherals

3） choice ：–> P3 VNC

4） open VNC function

5）reboot restart , complete .

6） Computer installation VNC Software , Enter raspberry pie ip Address , Enter the password for raspberry pie , Get into , It might prompt ：cannot currently show the desktop, Because the resolution is not set .

resolvent ：

1）ssh Connect the raspberry pie , Enter the command sudo raspi-config,
2） choice 7 Advanced Options, enter ,

3） choice A5 Resolution, enter ,

4） Choose a resolution other than the first one , enter ,

5）reboot restart , Access to desktop ！

Postscript

In the above steps , most important of all ssh Document and conf File format problem , The Internet doesn't connect , For a long time , Only then discovered that is the file format question .