A little while ago I installed a custom kernel on a machine which in production by now. However, I realize I need the netgraph module, but the module has not been built.
Is there a way to build this module and just put it in the filesystem without replacing the kernel (+ the necessary reboot)?
As far as I can see, I should specify the MODULES_OVERRIDE variable in /etc/make.conf:
and build the kernel. However, what to do with the resulting module? Should I call 'make installkernel' nevertheless or can I just copy the module into /boot/modules and load it?