Installation
------------------
Unpack the IMAGE file and copy the image an SD card: (assuming SD card at /dev/mmcblk0):

  # zstd -d irradium-*-core-*-build-*.img.zst
  # dd if=irradium-*-core-*-build-*.img of=/dev/mmcblk0 bs=1M

or unpack directly to the card

  # zstdcat irradium-*-core-*-build-*.img.zst > /dev/mmcblk0


Instalation eMMC/NAND/USB-HDD
------------------
to transfer a system with the SD to eMMC, you need to boot from the start and run the script:
  # transfer-to-disk


Default Login
------------------
login: root


Boot Mode Settings
-------------------
    https://forum.banana-pi.org/t/boot-selection-switch/18112/3?u=mara
    qspi_data[1]/strap[1]    qspi_data[0]/strap[0]    boot mode
    down                     down                     sdcard -> emmc (default)
    up                       down                     sdcard -> spi nandflash
    down                     up                       sdcard -> spi nandflash
    up                       up                       sdcard