Rebuilding the kernel

[Warner Losh]

On Mar 27, 2014, at 11:15 AM, dan_partelly <dan_partelly at rdsor.ro> wrote:

> Hi all,
> 
> Id like to know what is the proper procedure for rebuilding the FreeBSD
> kernel manually, to force it to to recompile only the 
> changed files and dependencies and then link the beast, and not a full
> build with make buildkernel. Also, is there a place where
> the system makefiles and the manual procedures for buidling the kernel,
> crosscompile, etc are documented ?

If you’ve done a previous ‘make buildkernel’ then you can make changes
and rebuild only the changed bits by adding ‘KERNFAST=XXX’ where
you would have had ‘KERNCONF=XXX’. This will eliminate the config
and clean stages, which will do what you want.

Warner