Read it first : https://github.com/peyo-hd/local_manifests

# Build Kernel
 Install gcc-4.7-arm-linux-gnueabihf. Then,
  $ cd kernel/odrc
  $ ARCH=arm make odroidc_defconfig
  $ ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- make uImage
  $ ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- make modules
  $ ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- make dtbs

# Patch frameworks/base
  Do https://github.com/peyo-hd/device_aml_odrc/wiki#avoid-logcat-flood

# Build Android source
 Continue build with http://source.android.com/source/building-running.html
  $ source build/envsetup.sh
  $ lunch odrc-eng
  $ make

# Prepare sd card
 Write bl.img
  $ cd device/aml/odrc/boot
  $ sudo dd if=bl.img of=/dev/sd? bs=4096
 Partitions of the card should be set-up like followings.
  p1 512MB for BOOT : Do fdisk, format as fat32
  p2 512MB for /system : Do fdisk, new primary partition, size 512M.
  p3 512MB for /cache  : Do fdisk, format as ext4
  p4 remainings for /data : Do fdisk, format as ext4
 Set volume label for each partition - system, cache, userdata
  : use -L option of mkfs.ext4, e2label command, or -n option of mkfs.vfat
 
# Write system partition
  $ cd out/target/product/odrc
  $ sudo dd if=system.img of=/dev/<p2> bs=1M

# Convert ramdisk.img to uInitrd
  $ cd out/target/product/odrc
  $ mkimage -A arm -C none -T ramdisk -d ramdisk.img uInitrd
  
# Boot partition, kernel & ramdisk
  
  device/aml/odrc/boot/boot.ini to p1:/
  kernel/odrc/arch/arm/boot/uImage to p1:/
  kernel/odrc/arch/arm/boot/dts/meson8b_odroidc.dtb to p1:/
  out/target/product/odrc/uInitrd to p1:/