Buildroot linux kernel clean build

Question

I am using buildroot to build linux firmware. How can I do a clean rebuild the linux kernel only (without having to build the whole thing which take an hour)?

I tried -

make linux-rebuild

but that does not do a clean.

I have also tried

make linux-reconfigure && make linux-rebuild

but that does not work either.

Answer 1

If you want to remove all of the changes in sources of the linux kernel be in buildroot directory (cd buildroot) and do following:

make linux-dirclean
make linux-rebuild

The first command will remove output/build/linux* directory and the second one will fetch and rebuild from scratch the kernel.