Yocto Project Development

Terminology in the Yocto Project can be a little confusing. These definitions should help you along the way:

OpenEmbedded: build system and community
The Yocto Project: umbrella project and community
Metadata: files containing information about how to build an image
Recipe: file with instructions to build one or more packages
Layer: directory containing grouped metadata (start with “meta-”)
Board support package (BSP): layer that defines how to build for board (usually maintained by vendor)
Distribution: specific implementation of Linux (kernel version, rootfs, etc.)
Machine: defines the architecture, pins, buses, BSP, etc.
Image: output of build process (bootable and executable Linux OS)