A very basic operating system.
Prerequisites
- gcc
- ld
- qemu
- grub-mkrescue
Clone the repo and run make to build the cross-compiler and the kernel and to start the OS in qemu. Use grub-mkrescue if grub2-mkrescue doesn't work on debian based systems.
The first build will take some time because it will download binutils and gcc to build the i386 cross-compiler. Subsequent builds would be faster.