Raspberry Pi

PreviousOdroid NextInfrastructure automation

Last updated 3 years ago

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Raspberry Pi

, ,

Quick start

Operating system setup

Validated configurations

Type

CPU

RAM

Pi Model B Rev 2

BCM2835 ARMv6 1176JZF-S 700 MHz

512 Mo

Raspberry Pi OS Lite (32-bit)

Pi Model 2 B

BCM2836 ARMv7 Cortex-A7 Quad Core 900MHz

1 Go

Ubuntu Server 18.04 (32-bit), Ubuntu Server 20.04 LTS (32-bit)

BCM2711 ARMv8 Quad core Cortex-A72 64-bit 1.5GHz

4 Go LPDDR4-3200

Ubuntu Server 18.04 (64-bit), Ubuntu Server 20.04 LTS (64-bit)

Known issues

WIFI issues with Pi 4: ,
Display stops working after a change in the config file: try holding the SHIFT key during startup (using this key will make the Raspberry Pi ignore the boot configuration file and load up with the default settings)

Key elements

SD card preparation

(Optional) Look at available systems
Insert the SD card and run the Raspberry Pi Imager
(Optional) Eject and insert again the SD card
- Edit network-config at the root of the drive (with new eth0 and wlan0 parameters)

Initial boot

Insert the SD card in the board, plug a keyboard (USB), a monitor (HDMI) then plug the power cable

Hardware check

cat /proc/cpuinfo

Shared steps

Wifi setup

# list interfaces (make sure wlan0 is displayed)
ls /sys/class/net

# edit or create a netplan yaml file and apply the change
sudo nano /etc/netplan/50-cloud-init.yaml
sudo netplan -d apply
systemctl daemon-reload
sudo reboot

# make sure it's connected (with an IP)
ip a
ping google.com

# enable an interface
sudo ip link set wlan0 up

# see the wireless interface
iwconfig

# if it doesn't show up, run
sudo ifconfig wlan0 up

# scan available networks
sudo iwlist wlan0 scan

# look at services
sudo systemctl status systemd-networkd.service
sudo systemctl status netplan-wpa-wlan0.service

# some Wifi USB adaptors may be incompatible with networkd, in this case fallback to NetworkManager
# - just in case make sure the value is correct (2 letter iso country code)
sudo nano /etc/default/crda
# - make sure NetworkManager service is started (start it if needed)
sudo systemctl status NetworkManager.service
# - edit netplan file to use NetworkManager instead of networkd (and comment the existing config)
sudo nano /etc/netplan/50-cloud-init.yaml
sudo netplan apply
systemctl daemon-reload
# - install additional package to have additional tools to configure wifi network
sudo apt install network-manager
# - run the configuration wizard
nmtui
# - set static ip
nmcli con mod mywifiname ipv4.addresses "192.168.86.144" ipv4.gateway "192.168.86.1" ipv4.dns "8.8.8.8,4.4.4.4" ipv4.method "manual"
# - look at the configuration file
sudo more /etc/NetworkManager/system-connections/mywifiname
# - restart the service to take this new configuration into account
sudo systemctl restart NetworkManager.service

System update

# review the operating system information
lsb_release -a

# use package manager to run updates
sudo apt update
sudo apt upgrade
sudo apt dist-upgrade
sudo reboot

Troubleshoot

# make sure all services are up
systemctl --failed

# look at recent entries in the journal
journalctl -xe

Keyboard layout configuration

sudo dpkg-reconfigure keyboard-configuration
sudo setupcon
more /etc/default/keyboard
sudo reboot

Raspberry Pi OS (aka Raspbian, Debian 10 = Buster)

Login with pi/raspberry
Change keyboard layout
Configure the easy way: set Wifi parameters, update hostname, enable SSH, change password, (optional) change keyboard configuration

raspi-config

(Optional] Configure a static ip by editing /etc/dhcpcd.conf (do a sudo reboot afterwards)

interface wlan0
static ip_address=192.168.86.145/24
static routers=192.168.86.1
static domain_name_servers=192.168.86.1 8.8.8.8 4.4.4.4

Run updates

Ubuntu Server (18.04)

Login with ubuntu/ubuntu (you'll be asked to provide a new password)
Change keyboard layout
(Optional) Review boot log

dmesg

If there is an issue starting systemd-modules, look at the journal and investigate the issue

sudo systemctl status systemd-modules-load.service

# manual step needed on Raspberry Pi 2: comment is_iser (see https://askubuntu.com/questions/877245/systemd-modules-load-failed-to-start)
sudo nano /lib/modules-load.d/open-iscsi.conf

sudo systemctl start systemd-modules-load.service

Configure Wifi
Run system updates

Ubuntu Server (20.04 LTS)

Login with ubuntu/ubuntu (you'll be asked to provide a new password)
Change keyboard layout
Configure Wifi
Run system updates

Recipes

.NET applications

Install .NET Core on ARMv6 32-bit

Install .NET Core on ARMv7 32-bit

# link taken by following download link from https://dotnet.microsoft.com/download/dotnet-core/3.1
wget https://download.visualstudio.microsoft.com/download/pr/56691c4c-341a-4bca-9869-409803d23cf8/d872d7a0c27a6c5e9b812e889de89956/dotnet-sdk-3.1.302-linux-arm.tar.gz
mkdir -p $HOME/dotnet
tar -xvf dotnet-sdk-3.1.302-linux-arm.tar.gz -C $HOME/dotnet
export DOTNET_ROOT=$HOME/dotnet
export PATH=$PATH:$HOME/dotnet
dotnet --version

# add the two export lines in .bashrc so it will be permanent
nano .bashrc

cat << \EOF >> ~/.profile

# add .NET Core SDK
export DOTNET_ROOT=$HOME/dotnet
export PATH=$PATH:$HOME/dotnet

# add .NET Core SDK tools
export PATH="$PATH:$HOME/.dotnet/tools"
EOF

logout

Install .NET Core on ARMv8 64-bit

Retro gaming

retropie

Configuration:

Usability
SSH
- Enable SSH in raspi-config: interfacing options > SSH > Enable > reboot your pi
- - Copy Amiga games (.adf, .ipf, .zip) in /home/pi/RetroPie/roms/amiga
  - Copy BIOS files (kick13.rom, kick20.rom, kick31.rom) in /home/pi/RetroPie/BIOS
- Make sure you have a keyboard and a mouse :)
/boot/config.txt file
- Values
Key
value
Detail
Comment
hdmi_group
1
CEA (Consumer Electronics Association) is the display standard that is typically used on a TV
hdmi_group
2
DMT (Display Monitor Timings) is the standard that is typically used by monitors
hdmi_mode
16
CEA 1920×1080 16:9 60hz
hdmi_mode
97
CEA 3840×2160 16:9 60hz
Raspberry Pi 4 Only. To use this hdmi_enable_4kp60=1 must be set in /boot/config.txt.
hdmi_mode
82
DMT 1920×1080 16:9 60hz
- To review: hdmi_force_hotplug=1, hdmi_drive=2

Known issues:

Latest update lvl0: VolumeControl::init() - Failed to find mixer elements!
- /opt/retropie/configs/all/emulationstation/es_settings.cfg: AudioDevice=HDMI/Headphone
Screen resolution
- /boot/config.txt: hdmi_group/hdmi_mode
Messed up configuration situation

Amibian

Seems dead

PreviousOdroid NextInfrastructure automation

Last updated 3 years ago

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