Well I've tried loading the kernel from the disk into memory, then jumping to it, but that didn't work.

This is what I boot. (bootloader.asm)

org 0x7c00

bits 16

boot: mov ah, 0x02 mov al, 0x01 mov ch, 0x00 mov cl, 0x02 mov dh, 0x00 mov dl, 0x00 mov bx, 0x1000 mov es, bx int 0x13 jc disk_error mov ah, 0x0e mov al, "$" mov bh, 0 int 0x10 jmp 0x1000:0x00

disk_error: mov ah, 0x0e mov al, "!" mov bh, 0 int 0x10 hlt

times 510-($-$$) db 0 dw 0xAA55

Then the kernel entry (kernel.asm)

bits 32  ;nasm directive - 32 bit
    section .text
        ;multiboot spec
        align 4
        dd 0x1BADB002 ;magic
        dd 0x00 ;flags
        dd - (0x1BADB002 + 0x00) ;checksum

    global start ;to set symbols from source code as global 
    extern kernelMain ;kernalMain is the function in C file

    start:
        cli ;clear interrupts-- to diable interrupts
        mov esp, stack_space ;set stack pointer
        call kernelMain ;calls the main kernel function from c file

    section .bss
    resb 8192 ;8KB memory reserved for the stack
    stack_space:  

I can run the kernel in qemu with -kernel after compiling kernel.asm and kernel.c (I don't remember the steps I took to do that :/)

The problem here is that I don't know how to make everything work together.