Creating the raspberry-packt-image.bb image

Through out this chapter, our aim was to create a layer that can be reused in any environment. We'll see how to create our own image to be more dependent on images provided by the meta-raspberrypi BSP layer. There's no need to worry, because to create an image, we just need to make a recipe file.

Creating the environment

To separate the recipes of our layer, we will position our image recipe in a layer called recipe-core, where we will create our raspberry-packt-image.bb recipe file.  Here are the results of our layer after creating it:

$ tree meta-packt_rpi/
meta-packt_rpi/
├── conf
│   └── layer.conf
├── COPYING.MIT
├── README
├── recipes-core
│   └── images
│       ├── raspberry-packt-image.bb
├── recipes-custom
   └── gpio-packt
│       ├── gpio-packt
│       │   ├── fix.patch
│       │   └── gpio-example.c
│       └── gpio-packt.bb
├── recipes-example
│   └── example
│       ├── example-packt-0.1
│       │ ...