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C Assembly
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This is a minimalistic kernel which prints "my first kernel" on the screen and then hangs.

  • The kernel is Multiboot compliant and loads with GRUB.

Blog post

Kernel 101 – Let’s write a Kernel


Build commands

nasm -f elf32 kernel.asm -o kasm.o
gcc -m32 -c kernel.c -o kc.o
ld -m elf_i386 -T link.ld -o kernel kasm.o kc.o

Test on emulator

qemu-system-i386 -kernel kernel

Get to boot

GRUB requires your kernel executable to be of the pattern kernel-<version>.

So, rename the kernel:

mv kernel kernel-701

Copy, it to your boot partition (assuming you are superuser):

cp kernel-701 /boot/kernel-701

Configure your grub/grub2 similar to what is given in _grub_grub2_config folder.


Voila !!

kernel screenshot

The next step

see mkeykernel repo

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