Download source:

$ mkdir mydroid
$ cd mydroid
$ repo init -u https://github.com/udoo-android-nougat/android_manifest.git -b android-7.1
$ repo sync --no-tags --no-clone-bundle

Set up ccache:

$ export USE_CCACHE=1
$ export CCACHE_DIR=/path/to/ccache_cache/.ccache
$ prebuilts/misc/linux-x86/ccache/ccache -M 50G

Select your target device:

$ source build/envsetup.sh
$ lunch

Compile Android image:

$ make -jxx

• Replace xx with number of cores of your CPU.

Write Android image to MicroSD:

1. Copy device/udoo/common/tools/write_sdcard_ext4.sh to out/target/product/udoo_xxx
   • Replace xxx with the name of target device.
2. Write the MicroSD with:

   $ sudo ./write_sdcard_ext4.sh -f soc_name /dev/sdX
   

   • Replace soc_name with imx6q for UDOO Dual/Quad or imx6sx for UDOO Neo
   • Replace dev/sdX with the correct device letter.