The UART port is correctly enabled and thus the U-Boot bootloader, listening on the serial port to capture keystrokes during the countdown, intercepts the signals coming from the PMS connected to the sensors board.
The above stops the countdown and makes the U-Boot system enter its command-line interface, pausing the bootstrap of the device.
to avoid this, the "boot delay" of the bootloader should be disabled running the commands directly into the bootloader prompt:
setenv bootdelay -2
saveenv
boot
or, alternatively, adding this parameter into the U-Boot config file.
I successfully flashed the sd-card image using the fedora-arm-installer command:
sudo fedora-arm-image-installer -y --image=fedora-33-qiot.aarch64.raw.xz --target=rpi3 --media=/dev/sdd --resizefs --addkey=/home/abattagl/.ssh/id_rsa.pub --norootpass --addconsole
The UART port is correctly enabled and thus the U-Boot bootloader, listening on the serial port to capture keystrokes during the countdown, intercepts the signals coming from the PMS connected to the sensors board.
The above stops the countdown and makes the U-Boot system enter its command-line interface, pausing the bootstrap of the device.
to avoid this, the "boot delay" of the bootloader should be disabled running the commands directly into the bootloader prompt:
or, alternatively, adding this parameter into the U-Boot config file.