The use case is installing Ubuntu Core to run as an appliance. The machine:

• will run a single task,


• is preferably slimmed down to have low disk space consumption,


• has the (custom) kernel installed via a .deb file (not the "linux" meta package)

The kernel compile make-kpkg command suggest to include kernel_headers.

But why and/or when do I really need (or is it wise) to make and/or install linux headers (package)?