How to create firmware via Buildroot?

Question

linux

There are Buildroot functions and everything else, make menuconfig I add all my modifications, after which I apply make and an unpacked linux with busybox is created, which is slightly different from the idea of ​​\u200b\u200bwhat it should be, maybe someone has come across and is ready to write a small tutorial for me, maybe I'm missing something I understand, because an image should be created in the Images folder, and not be empty