ODROID-XU4

The ODROID-XU4 is the successor to the ODROID-XU3, putting the same Exynos 5422 in a smaller footprint and available at a lower cost. The board also adds a second USB 3.0 host port, a full-size HDMI connector, and gigabit ethernet. Since it uses the same SoC, this board has full software compatibility to the XU3.

Features of the board include:

  • Samsung Exynos 5422 Cortex™-A15 2Ghz and Cortex™-A7 Octa-core CPUs
  • Mali-T628 MP6 (OpenGL ES 3.0/2.0/1.1 and OpenCL 1.1 Full profile)
  • 2GB LPDDR3 RAM
  • eMMC5.0 HS400 Flash Storage
  • 2x USB 3.0 Host, 1x USB 2.0 Host
  • Gigabit Ethernet
  • HDMI 1.4a
  • 82 x 58 x 22 mm (including cooling fan)
Architecture
ARMv7 Cortex-A15
Processor
Samsung Exynos 5422 2GHz
RAM
2GB
SD
Micro SD
USB
3
Ethernet
Gigabit

Micro SD Card Creation

Replace sdX in the following instructions with the device name for the SD card as it appears on your computer.

  1. Zero the beginning of the SD card:
    dd if=/dev/zero of=/dev/sdX bs=1M count=8
  2. Start fdisk to partition the SD card:
    fdisk /dev/sdX
  3. At the fdisk prompt, create the new partitions:
    1. Type o. This will clear out any partitions on the drive.
    2. Type p to list partitions. There should be no partitions left.
    3. Type n, then p for primary, 1 for the first partition on the drive, and enter twice to accept the default starting and ending sectors.
    4. Write the partition table and exit by typing w.
  4. Create the ext4 filesystem:
    1. For e2fsprogs < 1.43:
      mkfs.ext4 /dev/sdX1
    2. For e2fsprogs >= 1.43:
      mkfs.ext4 -O ^metadata_csum,^64bit /dev/sdX1
  5. Mount the filesystem:
    mkdir root
    mount /dev/sdX1 root
  6. Download and extract the root filesystem (as root, not via sudo):
    wget http://os.archlinuxarm.org/os/ArchLinuxARM-odroid-xu3-latest.tar.gz
    bsdtar -xpf ArchLinuxARM-odroid-xu3-latest.tar.gz -C root
  7. Flash the bootloader files:
    cd root/boot
    sh sd_fusing.sh /dev/sdX
    cd ../..
  8. Unmount the partition:
    umount root
  9. Set the boot switch on the ODROID-XU4 board next to the HDMI jack to the uSD position.
  10. Insert the micro SD card into the XU4, connect ethernet, and apply 5V power.
  11. Use the serial console (with a null-modem adapter if needed) or SSH to the IP address given to the board by your router.
    • Login as the default user alarm with the password alarm.
    • The default root password is root.

eMMC Module Creation

  1. Attach the eMMC module to the micro SD adapter, and plug that into your computer.
  2. Follow the above steps to install Arch Linux ARM, and boot the board with the eMMC still attached to micro SD adapter, plugged into the SD slot in the board.
  3. Re-flash the bootloader to the protected boot area of the eMMC module:
    cd /boot
    ./sd_fusing.sh /dev/mmcblk0
  4. Power off the board:
    poweroff
  5. Remove the micro SD adapter, and detach the eMMC module.
  6. Set the boot switch on the ODROID-XU4 board next to the HDMI jack to the eMMC position.
  7. Connect the eMMC module to the XU4, ensuring you hear a click when doing so, connect ethernet, and apply 5V power.
  8. Use the serial console (with a null-modem adapter if needed) or SSH to the IP address given to the board by your router.
    • Login as the default user alarm with the password alarm.
    • The default root password is root.

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