Bootloader Installation: RPi-4B

Installing the KOS bootloader installs the node manager, the necessary software to recognize the board as a KOS device. KOS Studio recognizes KOS Devices and can interact with them as needed.

Node discovery lists all the possible devices running KOS in your network and all devices connected via KOS Studio within your organization.

Prerequisites

Software:

  • Ensure your Mac or Windows machine has the Raspberry Pi Imager installed. If needed, you can install it from here.

Hardware:

  • A Windows or Mac machine with a USB Standard-A port (or the with supported USB hub or adapter)
  • A RPi-4B board with power and screen connected.
  • A Micro SD card for flashing the KOS bootloader.

Step 1: Download the bootloader

  • Download the RPi-4B bootloader.
    • If you use Safari to download the file, the file is automatically unarchived, and the *.img file will be in the download location.
    • On other browsers, unarchive the *.img.gz file for flashing.

Step 2: Prepare the micro SD card

  • Insert the Micro SD card into the card reader and connect it to your computer.
  • Start the RPi Imager installed on the machine.
  • Locate and select the ‘.img’ and select the inserted flash drive.
  • Follow the instructions for RPi Imager to flash the image to the flash drive.

Step 3: Verification

  • Turn off the power to the board
  • Insert the SD card into the RPI-4B board
  • Connect the USB keyboard and HDMI monitor.
  • Connect the Ethernet cable to the RPi-4B.
  • Power up the RPi-4B and wait for a few seconds to boot up.
  • The screen should show Node Manager, and the IP should be displayed.
  • You can use this IP in KOS Studio to interact with the device such as installing your device images.