Freebsd building a kernel

Prerequisites

Install subversion

• pkg install -y subversion
• rehash

Get the kernel

• svn co https://svn0.us-east.FreeBSD.org/base/stable/10 /usr/src

Kernel building

Go to the right directory

• cd /usr/src/sys/`uname -m`/conf

Save the generic config

• cp GENERIC XINUXKERNEL

Add an option

• XINUXKERNEL

Example:

options         IPSEC_NAT_T

Links

• https://www.digitalocean.com/community/tutorials/how-to-customize-and-recompile-your-kernel-on-freebsd-10-1
• https://www.freebsd.org/doc/de/books/handbook/kernelconfig-config.html