Pi OS (instead of HA OS) on Yellow?

Installation
10

@laurius, @MrPlow254

Okay, I gave it a shot in case somebody else stumbles upon this, just follow the steps below and the device should pop up during the onboarding process with HA (at least with Docker), but the same should apply with a virtEnv installation.

Prerequisites

  • Home Assistant Yellow with Raspberry Pi OS on the CM4 installed
  • SSH enabled

Copy drivers, edit boot and run in docker

  1. Flash Installer for HA Yellow on a USB stick

  2. Copy to existing HA Yellow Installation (on RasPi OS) from USB stick directory:

    scp .\bcm2711-rpi-cm4-ha-yellow.dtb user@yourdeviceIP:/home/youruser
scp .\overlays\rpivid-v4l2.dtbo user@yourdeviceIP:/home/youruser

  3. copy files from home to boot directory (permissions are overwritten):

    sudo mv bcm2711-rpi-cm4-ha-yellow.dtb /boot/
sudo mv rpivid-v4l2.dtbo /boot/overlays/

  4. Replace the console= in cmdline.txt with console=ttyAMA2,115200n8

  5. Backup original config.txt file: sudo cp config.txt config.bkp

  6. Edit the config.txt file to look like this (based on HA Yellow config.txt):

    # Additional overlays and parameters are documented /boot/overlays/README

# DISABLE audio (loads snd_bcm2835)
dtparam=audio=off

# DO NOT Automatically load overlays for detected cameras
camera_auto_detect=0

# DO NOT Automatically load overlays for detected DSI displays
display_auto_detect=0

# Enable DRM VC4 V3D driver
#dtoverlay=vc4-kms-v3d
#max_framebuffers=2

# Run in 64-bit mode
arm_64bit=1

# Disable compensation for displays with overscan
disable_overscan=1

# Make room for larger initramfs
gpu_mem=16

# fixes rpi (3B, 3B+, 3A+, 4B and Zero W) ttyAMA0 serial console
dtoverlay=miniuart-bt

# enable autoprobing of Bluetooth driver without need of hciattach/btattach
dtoverlay=krnbt=on

dtoverlay=vc4-kms-v3d-pi4
dtoverlay=imx219

# Enable UART debug prints
enable_uart=1
uart_2ndstage=1

# Use Yellow device tree
device_tree=bcm2711-rpi-cm4-ha-yellow.dtb

[cm4]
# Enable host mode on the 2711 built-in XHCI USB controller.
# This line should be removed if the legacy DWC2 controller is required
# (e.g. for USB device mode) or if USB support is not required.
otg_mode=1

  7. reboot HA Yellow

  8. Install Docker according to Install Docker Engine on Debian | Docker Documentation

  9. Install docker-compose: sudo apt install docker-compose

  10. Add user to docker group: sudo usermod youruser -aG docker

  11. Log out and into SSH again

  12. Make a docker-compose.yml:

    version: '3.7'
services:
  homeassistant:
    container_name: home-assistant
    image: homeassistant/home-assistant
    volumes:
      - /home/youruser/hass-files-tmp:/config
      - /etc/localtime:/etc/localtime:ro
      - /etc/hosts:/etc/hosts:ro
    devices:
      - /dev/ttyAMA1:/dev/ttyAMA1
    network_mode: host
    restart: always

  13. Pull image: docker-compose pull

  14. Run container: docker-compose up -d

  15. Go to http://yourhost.lan:8123/, finish onboarding process, add ZHA. Chip should be visible at /dev/ttyAMA1.

image

Hope this helps.

Best,
Chris

1 Like