The Jupiter Nano ships with a debian image. However, not everyone wants to use debian. Also, something like Yocto allows you to heavily customize your linux image as well as reduce your boot time considerably. Check out this post that lays the foundation for creating a Yocto image.
Tag: bootloader
Embedded Security #3 – Immutable Boot Code
Secure Embedded Systems need immutable boot code now more than ever...let us understand what it is!