OpenEmbedded is a software framework used for creating Linux distributions aimed for, but not restricted to, embedded devices. Below are pre-built console and desktop images of Debian with their respective bootloader and boot image. If desired, these images can be recreated by following the build from source instructions found here (Note: this link will take you to the Linaro Github)
Choose one boot image, the root file system you choose will be based on the boot image you download here:
Latest OpenEmbedded snapshot images can be found HERE. Once you have downloaded your pre-built images, proceed to the installation page.