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
password: set at first login


Flash SPI
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    # cat /proc/mtd
    dev:    size   erasesize  name
    mtd0: 00800000 00001000 "d420c000.spi"
    mtd1: 00020000 00001000 "bootinfo"
    mtd2: 00080000 00001000 "fsbl"
    mtd3: 00010000 00001000 "env"
    mtd4: 00100000 00001000 "esos"
    mtd5: 00060000 00001000 "opensbi"
    mtd6: 005f0000 00001000 "uboot"

    # dd if=/boot/bootinfo_spinor.bin of=/dev/mtdblock1
    # dd if=/boot/FSBL.bin of=/dev/mtdblock2
    # dd if=/boot/boot.scr of=/dev/mtdblock3
    # dd if=/boot/esos.itb of=/dev/mtdblock4
    # dd if=/boot/fw_dynamic.itb of=/dev/mtdblock5
    # dd if=/boot/u-boot.itb of=/dev/mtdblock6

    or

    # dd if=/boot/bootinfo_spinor.bin of=/dev/mtdblock0 bs=1 seek=0
    # dd if=/boot/FSBL.bin of=/dev/mtdblock0 bs=1 seek=$((128 * 1024))
    # dd if=/boot/boot.scr of=/dev/mtdblock0 bs=1 seek=$((640 * 1024))
    # dd if=/boot/esos.itb of=/dev/mtdblock0 bs=1K seek=704
    # dd if=/boot/fw_dynamic.itb of=/dev/mtdblock0 bs=1K seek=1728
    # dd if=/boot/u-boot.itb of=/dev/mtdblock0 bs=1K seek=2112