ODROID-N2

Micro SD and eMMC Creation

Replace sdX in the following instructions with the device name for the SD card as it appears on your computer. Use the provided micro SD to eMMC adapter card to install to eMMC.

1. Zero the beginning of the SD card or eMMC module:

   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. Now 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-aarch64-latest.tar.gz
   bsdtar -xpf ArchLinuxARM-aarch64-latest.tar.gz -C root

7. Download the extlinux script for U-Boot and place it in the /boot/extlinux directory:

   mkdir -p root/boot/extlinux
   wget http://os.archlinuxarm.org/os/amlogic/boot/odroid-n2/extlinux.conf -O root/boot/extlinux/extlinux.conf

8. Unmount the partition:

   umount root

9. Download and install the U-Boot bootloader:

   wget http://os.archlinuxarm.org/os/amlogic/boot/odroid-n2/u-boot.bin.sd.bin
   dd if=u-boot.bin.sd.bin of=/dev/sdX conv=fsync,notrunc bs=512 skip=1 seek=1
   dd if=u-boot.bin.sd.bin of=/dev/sdX conv=fsync,notrunc bs=1 count=440

10. Move the boot selector switch to MMC.
11. Insert the micro SD card or eMMC module into the device, connect ethernet, and apply 12V power.
12. Use the serial console 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.
13. Initialize the pacman keyring and populate the Arch Linux ARM package signing keys:

    pacman-key --init
    pacman-key --populate archlinuxarm