# Compulab RPI4-IOTG configuration

## Install OS



1. install rpiboot `sudo apt install rpiboot`
2. start `sudo rpiboot`
3. connect rpi to programming usb port, power on.

The device should become available as removable drive (`lsblk`)


*flash with imager*

use rpiimager to flash an image. Note: may hang for a long time on 99%. be patient.

*flash with cli*

Download image from https://downloads.raspberrypi.com/raspios_arm64/images/

`wget https://downloads.raspberrypi.com/raspios_arm64/images/raspios_arm64-2026-04-21/2026-04-21-raspios-trixie-arm64.img.xz`

Flash

`xzcat raspios.img.xz | sudo dd of=/dev/sda bs=4M status=progress conv=fsync`



compulab guide: [OS installation](https://mediawiki.compulab.com/w/index.php?title=IOT-GATE-RPI4:_Raspberry_Pi_OS_image_installation)


## Add layers

Files to update system to Buster

Two options:

1. copy `firmware` to device. (partial `config.txt` and overlays)
2. install repackaged .deb overlay (**untested**)