UEFI_Master - so i decided to try and convert my OS to uefi

• Requirements

  • sudo

    • create the disk image.
    • we create the image and make the partition table, then mount it to /mnt/img as a loopback device, then we just copy the files over and umount it.

  • kpartx

    • tool used to create the loopback device from the file in order to mount the partition the image contains.

  • nasm

    • for compiling the assembly files

  • gcc/clang

    • g++/clang++ for compiling the cpp files

  • qemu

    • qemu-system-x86_64 to run the produced .img file

  • dosfstools

    • mkfs.fat for generating the fat32 filesystem on the .img file

  • gnu make

    • to run the Makefiles ;)

About the architecture

Firstly the kernel architecture is what is known as a megalithic kernel which means there is no task switching or user-mode. you may refer to https://wiki.osdev.org/Megalithic_Kernel this page for more details. there will however still be a "userland" however it will be a virtual machine, think like if you compile linux's userland to target KVM instead of the actual hardware. for the virtual machine i am thinking of possibly using wasm for the binaries like...

[kernel]{
	[wasm interpreter]{
		[userland binary]{...binary...}
	}
}

this will allow me to have the simplicity of a megalithic kernel with the flexibility of a monolithic kernel while also keeping the speed of the megalithic kernel. and if i do indeed do wasm instead of something else than my "userland" will be pretty portable as well, it could run on any platform with a browser basically.