freebsd开源内核

Question

I am beginner. I want install freebsd on VM and test open source world! I want to write a small function and to put it into kernel of OS, and then I want to use it in another program as a system function. I just installed freebsd11 on VM. I know a command line environment! I should use a GUI? Where is kernel?

Answer 1

FreeBSD is a wonderful beast once you know all its capabilities, if you want to play with jails , ZFS and build your own kernels , probably this already build image can be a good starting point: https://fabrik.red/post/test/ more info can be found here including scripts about how to create your own images/jails (custom kernel): https://github.com/fabrik-red/images

There is no GUI on the images, and maybe you will never need one, unless you want to use FreeBSD as a desktop, but FreeBSD shines more on headless systems (no GUI).

Update :

For GUI probably you can give a try to trueos.org or you can install your own Xorg , desk environments

Answer 2

Sounds like you should learn a bit more about what the operating system does before trying to modify the kernel. There are lots of resources about the unix kernels. See the developers handbook, https://www.freebsd.org/doc/en/books/developers-handbook/ or just google and you will find many resources.