Hi!

I made a custom kernel with Buildroot. This give me a file called sdcard.img and other files. 

I want only the kernel to replace the existent kernel of my armbian distribution on my orange pi zero.

What files I need? How I copy and replace the existent kernel?

Very Thanks!

I'm not sure that is the way that buildroot's kernel will want to work. Buildroot relies heavily on busybox and its own rootfs. I believe if you copied over the kernel and the /etc/init.d scripts you may have a chance, but its still a pretty challenging endeavor. 

 

Do you have your buildroot configuration files somewhere that I can look at? For example, in the kernel config it asks which partition your rootfs is in.