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How to configure WiFi on Raspberry Pi 4B with Ubuntu 20.04.

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DavidUnboxed/Ubuntu-20.04-WiFi-RaspberyPi4B

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README.md

Ubuntu 20.04 Wi-Fi RaspberyPi 4B

How to configure Raspberry Pi 4B & Ubuntu 20.04 for headless Wi-Fi without disabling cloud-init:

1. Image the SD Card using Raspberry Pi Imager v 1.3 selecting the ‘UNBUNTU 20.04 LTS (RASBERRY PI 3/4)(64-bit) image. See: https://ubuntu.com/tutorials/how-to-install-ubuntu-on-your-raspberry-pi#1-overview
2. When imaging is completed, remove the SD Card and then reinsert it so that it is mounted. Under Windows, Raspberry Pi Imager v 1.3, software ejects the SD Card after writing the image and it will be unavailable until removed and re-inserted.
3. Copy ‘network-config’ & ‘user-data’ from the ‘Files to Copy to SD Card’ folder in this repository, overwitting the same two files on the SD Card.
4. Edit ‘network-config’ on the SD Card, replacing SSID and PassPhrase with your wireless access point credentials. Ensure the two values remain wrapped in quotes. Be sure not to add any externous characters and be sure to preserve the indenting as-is. Save the modified file to the SD Card.
5. Eject the SD Card, then remove from the SD Card from the computer used for imaging/editing and insert it into your powered-off Raspberry Pi 4B.
6. Power up the Raspberry Pi 4B and then Wait about 4 minutes to allow Ubuntu to boot, cloud-init to do its job, and then Ubuntu to reboot. If you observe with a montior, you will see the logon box appear after the first boot but it will take about two more minutes for cloud-init to show SSH keys, etc., and then reboot. If you try to logon before cloud-init is done the default credentials will not work as they are set by cloud-init.
7. Logon locally if you have a monitor and keyboard attached or via SSH if headless. The default user is ‘ubuntu’ and the default password is ‘ubuntu’. See Ubuntu Tutorial: https://ubuntu.com/tutorials/how-to-install-ubuntu-on-your-raspberry-pi#4-boot-ubuntu-server

That’s it: Headless, Wi-Fi’d Ubuntu 20.04 on Raspbery Pi 4B.

Additional Notes If you choose to make your own version of ‘network-config’ and/or ‘user-data’ rather than copy mine, be especially careful with editors such as Notepad++, as they may enter tab characters when you press ‘enter’ to start a new line. Tab charcters are not valid for the files, as they are consumed by cloud-init to build the netplan YAML files. Use two spaces for indentations. You must maintain the indentations for the file to be interpreted correctly.

My first google search to solve this problem ran into the thread https://raspberrypi.stackexchange.com/a/113642/121286. I didn’t care for the solutions there that called to disabled cloud-init but drew inspiration from Andbdrew’s tips and was able to make this work headless (and with a head) consistently without disabling cloud-init. To make this work, I eliminated all interfaces from ‘network-config’ except wlan0 and set ‘renderer: networkd’. It appears the image does not contain a full implimentation to support ‘renderer: NetworkManager’ — which I hoped would eliminate the ‘needs a reboot to work’ problem I encountered. Cloud-init appears on screen about 2 minutes after the logon problem, probably runs too late in the boot cycle for the regional db containing wifi frequencies to be applied — and thus a reboot after cloud-init is necessary. Thanks to my friend, https://github.com/AWildBeard, for brainstorming with me on this problem — and for directing me to documentation for cloudinit: https://cloudinit.readthedocs.io/en/latest/topics/examples.html#reboot-poweroff-when-finished.

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How to configure WiFi on Raspberry Pi 4B with Ubuntu 20.04.

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How to setup of Raspberry Pi 3 onboard WiFi for Ubuntu Server with ‘netplan’?

How to setup of Raspberry Pi 3 B+ onboard WiFi for Ubuntu Server 18.04? In particular, with netplan ? Existing answers, such as «How to use onboard wifi on Raspberry Pi 3 with Ubuntu Server 16.04?», no longer seem to apply since /etc/network/interfaces states that netplan has replaced ifupdown .

# ifupdown has been replaced by netplan(5) on this system. See # /etc/netplan for current configuration. 

##### release ########################### Distributor ID: Ubuntu Description: Ubuntu 18.04.2 LTS Release: 18.04 Codename: bionic ##### kernel ############################ Linux 4.15.0-1034-raspi2 #36-Ubuntu SMP PREEMPT Fri Apr 5 06:21:41 UTC 2019 aarch64 aarch64 aarch64 GNU/Linux 

Since 18.04.2 the linux-firmware and linux-firmware-raspi2 packages now contain the necessary files for the built-in WiFi on the Pi 3B and 3B+.

*-network:0 DISABLED description: Wireless interface physical id: 2 logical name: wlan0 serial: b8:27:eb:69:f2:3b capabilities: ethernet physical wireless configuration: broadcast=yes driver=brcmfmac driverversion=7.45.18 firmware=01-6a2c8ad4 multicast=yes wireless=IEEE 802.11 *-network:1 description: Ethernet interface physical id: 3 logical name: eth0 serial: b8:27:eb:3c:a7:6e size: 1Gbit/s capacity: 1Gbit/s capabilities: ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=lan78xx driverversion=1.0.6 duplex=full ip=172.16.76.7 link=yes multicast=yes port=MII speed=1Gbit/s 

To configure netplan, save configuration files under /etc/netplan/ with a .yaml extension (e.g. /etc/netplan/config.yaml ), then run sudo netplan apply .

. yet, no guideance specific to a RaspberryPi. . in particular, with respect to the existing /etc/netplan/50-cloud-init.yaml file on the RaspberryPi Ubuntu Server install.

##### Netplan config #################### [/etc/netplan/50-cloud-init.yaml] # This file is generated from information provided by # the datasource. Changes to it will not persist across an instance. # 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: network: version: 2 ethernets: eth0: dhcp4: true match: macaddress: set-name: eth0 

So, given the use of netplan and default generated .yaml file. How should one add a WiFi network SSID and password? And leave the existing wired ethernet in place?

Источник

Connect raspberry pi 4 with ubuntu server to wifi

I have a Raspberry Pi 4. As I do not have a screen and keyboard available, I connect it through an Ethernet cable. I want the Raspberry Pi to be connected to the Wi-Fi and not via Ethernet. I tried to update /etc/network/interfaces to:

auto lo iface lo inet loopback auto wlan0 iface wlan0 inet static address 192.168.1.150 netmask 255.255.255.0 gateway 192.168.1.1 wpa-essid MYESSID12345 wpa-psk MYPASSWORD$1234567 

eth0: flags=4163 mtu 1500 inet 192.168.1.41 netmask 255.255.255.0 broadcast 192.168.1.255 inet6 fe80::dea6:32ff:fe62:c4fc prefixlen 64 scopeid 0x20 ether dc:a6:32:62:c4:fc txqueuelen 1000 (Ethernet) RX packets 118 bytes 13529 (13.5 KB) RX errors 0 dropped 52 overruns 0 frame 0 TX packets 63 bytes 9012 (9.0 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10 loop txqueuelen 1000 (Local Loopback) RX packets 168 bytes 12300 (12.3 KB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 168 bytes 12300 (12.3 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 wlan0: flags=4099 mtu 1500 ether dc:a6:32:62:c4:fd txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 

iwconfig wlan0 essid name key password 

iwconfig wlan0 essid name key s:password 

Error for wireless request "Set Encode" (8B2A) : SET failed on device wlan0 ; Invalid argument. 

I also tried iwconfig wlan0 essid name using wps but it does not work. I also tried with wpasupplicant . Creating /etc/wpa_supplicant.conf with

and then running sudo wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant.conf -D wext But I have errors too.

Successfully initialized wpa_supplicant ioctl[SIOCSIWENCODEEXT]: Invalid argument ioctl[SIOCSIWENCODEEXT]: Invalid argument 

Источник

How to setup the Raspberry Pi 3 onboard WiFi for Ubuntu Server 18.04 with netplan?

How to setup of Raspberry Pi 3 B+ onboard WiFi for Ubuntu Server 18.04? In particular, with netplan ? This is a clean install of the Ubuntu Server 18.04 image for Raspberry Pi 3. File: ubuntu-18.04.2-preinstalled-server-arm64+raspi3.img.xz . The installed file /etc/network/interfaces states that netplan has replaced ifupdown .

# ifupdown has been replaced by netplan(5) on this system. See # /etc/netplan for current configuration. 

# This file is generated from information provided by # the datasource. Changes to it will not persist across an instance. # 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: network: version: 2 ethernets: eth0: dhcp4: true match: macaddress: set-name: eth0 

To configure netplan, save configuration files under /etc/netplan/ with a .yaml extension (e.g. /etc/netplan/config.yaml ), then run sudo netplan apply .

. yet, no guideance specific to a RaspberryPi. . in particular, with respect to the existing /etc/netplan/50-cloud-init.yaml file on the RaspberryPi Ubuntu Server install. What would be the netplan template for the RaspberryPi? Can the existing /etc/cloud/cloud.cfg.d be left enabled? What is lost if cloud.cfg.d on the Raspberry Pi is disabled? . (. and, wondering . how much of this issue needs RaspPi knowledge vs. Ubuntu knowledge.) Note: Since this question is at the intersection of Ubuntu & Raspberry Pi, a related question was also posted on AskUbuntu.

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