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The Raspberry is a small inexpensive single-board computer.

To learn more about using Plan9 on Raspberry Pi as a desktop computer, see computer.

To get started with a new device, download Raspbian Lite and burn it on a SD card. The default login credentials are pi/raspberry.


You can use ssh to input commands and remotely control the device, follow these steps to get started.

touch /Volumes/boot/ssh # Enable SSH
touch /Volumes/boot/wpa_supplicant.conf # Auto-connect to wifi

Setup Wifi

Input your wireless network details to enable the device to automatically connect to the network when available.

# nano /Volumes/boot/wpa_supplicant.conf
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev


When ssh has been activated and the wifi details updated, the device should become discoverable.

ping raspberrypi.local # Find its IP address
ssh pi@ # Use password "raspberry"
sudo raspi-config # Interface/SSH & Advanced/Expand FS
sudo nano /etc/hostname # Rename
sudo nano /etc/hosts # Rename
passwd # Change Password
sudo reboot

Gadget Mode

Gadget mode allows to SSH into a Raspberry Pi Zero device via USB. Begin by enabling ssh, by adding /Volumes/boot/ssh to the SD Card. Activate gadget mode , allowing the device to be discovered and controlled via USB.

dtoverlay=dwc2 # Append to config.txt
modules-load=dwc2,g_ether # Append to cmdline.txt, or after rootwait

Workstation Basics

While traveling, I often use a Raspberry Pi workstation to save power. For more details on which software I use, see the unix cheatsheet.

sudo apt-get update
sudo apt-get upgrade

sudo apt-get install i3 xserver-xorg xinit
sudo apt-get install feh tcc surf git

sudo startx
Pimoroni Board
radio station — Pimoroni Board
A Toy Piano for Rainy Days
framboisedorf — A Toy Piano for Rainy Days
Looking out for storms
weather station — Looking out for storms
instrument — Waterproof

incoming plan9 radio station weather station usagi