Board: RPi-4b
Prerequisites
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Before flashing an RPI module with KOS Bootloader, ensure your Mac or Windows machine has the necessary software installed.
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For macOS, please refer to Prerequisites for macOS
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For Windows, please refer to Prerequisites for Windows
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You will also need the following hardware.
Step 1: Download the KOS Bootloader
Navigate to the KOSDev Download Page and select the correct bootloader.
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If you use Safari to download the file, the file is automatically unarchived, and the *.img file will be in the download location.
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On other browsers, you will use 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.
Step 3: Flash the Bootloader onto the SD Card
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Start the Disk imaging software (Balena Etcher or RPi Imager) installed in the machine.
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Locate and select the '.img' or '.img.gz' file and then select the inserted SD card.
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Follow instructions Balena Etcher or RPi Imager to flash the image to the SD card.
Step 4: Verify installation
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Turn off the power to the board
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Insert the SD card into the RPI-4B / RPI-0.
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Connect the USB keyboard and HDMI monitor.
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Connect the Ethernet cable to the RPI-4B / RPI-0.
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Power up the RPI-4B / RPI-0 and wait for a few seconds to boot up.
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The screen should show “Node Manager,” and the IP should be displayed.
