From now we can run the Linux kernel in the virtual machine and this means that we can begin to change and test the kernel.
Consider using [ivandaviov/minimal](https://github.com/ivandavidov/minimal) to automate the process of generating initrd.
Consider using [ivandaviov/minimal](https://github.com/ivandavidov/minimal) or [Buildroot](https://buildroot.org/) to automate the process of generating initrd.