ODROID-X2

The ODROID-X2 is an improvement on the ODROID-X development platform, based on an Exynos 4412 ARM Cortex-A9 Quad Core CPU at 1.7GHz instead of 1.4GHz. It also comes with 2GB RAM instead of 1GB. It has 6 USB 2.0 ports, micro HDMI, The board has several accessories available through Hardkernel such as 10.1" and 14" LVDS LCDs (with adapters), Wifi and Bluetooth adapters, 1.8v serial adapter (recommended if you're going to be any debugging...actually, it's recommended anyway so you won't have to pay shipping twice when you realize you need it later), and an eMMC storage module. They also have a camera module, but currently it does not work with Linux.

Other features of the board include:

  • Mali-400 Quad Core Graphics accelerator
  • 1080p/720p video over HDMI, 1360x768 over LVDS
  • 3.5mm headphone/microphone jacks
  • 6x USB 2.0 Host ports
  • 1x USB 2.0 Device port
  • 50 pin I/O expansion port for LCD/I2C/UART/SPI/ADC/GPIO interfaces
  • Full size SDHC
  • eMMC module
  • MIPI-CAM camera connector (not yet supported)
  • 90 mm x 94 mm base board size
Architecture
ARMv7 Cortex-A9
Processor
Samsung Exynos 4412 1.7GHz
RAM
2GB
SD
Full SD
USB
6
Ethernet
10/100

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 partition:
    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, 4096 for the first sector, and then press ENTER to accept the default last sector.
    4. Write the partition table and exit by typing w.
  4. Create the ext4 filesystem:
    mkfs.ext4 /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-latest.tar.gz
    bsdtar -xpf ArchLinuxARM-odroid-latest.tar.gz -C root
  7. Flash the bootloader files:
    cd root/boot
    ./sd_fusing.sh /dev/sdX
    cd ../..
  8. Unmount the partition:
    umount root
  9. Set the boot switches on the ODROID-X2 board to boot from SD:
    1. Locate the jumper between the SD slot, USB ports, and heatsink, labeled for eMMC and SD selection
    2. Place the jumper over just one of the pins (so you don't lose it), not over both pins.
  10. Insert the SD card into the board, 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.
  12. Initialize the pacman keyring and populate the Arch Linux ARM package signing keys:
    pacman-key --init
    pacman-key --populate archlinuxarm

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, detach the eMMC module, and connect the eMMC module to its connector on the board.
  6. Set the boot switches on the ODROID-X2 to boot from eMMC:
    1. Locate the jumper between the SD slot, USB ports, and heatsink, labeled for eMMC and SD selection
    2. Place the jumper over both pins.
  7. Re-apply power the board.
  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.
  9. Initialize the pacman keyring and populate the Arch Linux ARM package signing keys:
    pacman-key --init
    pacman-key --populate archlinuxarm

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