Everything went wrong - SEA OS first try failed

Hello!

If you saw my last post about SEA OS, you probably know that I had started building a kernel and a bootloader.

Everything was going pretty well.

I could build the project, boot it in QEMU, and see my kernel running. I was slowly getting closer to the things I actually wanted SEA OS to have, like keyboard input, graphics, and eventually a proper user interface.

Then I decided to test it on my real device.

And... yeah.

Everything went wrong.

The Real Hardware Test

QEMU made the project look much more complete than it actually was.

Inside a virtual machine, I could test the boot process and kernel without dealing with all of the hardware differences of a real computer.

But a real machine is a completely different story.

The moment I tried to boot SEA OS on actual hardware, I started running into problems that I simply didn't see in QEMU.

Things that worked in the virtual environment didn't necessarily work on the real device.

The boot process became the first major problem.

Then graphics became another problem.

And suddenly I was dealing with hardware compatibility instead of just writing kernel code.

What I Learned

This was honestly a pretty important lesson for me.

Getting something to boot in QEMU doesn't mean you've built something that will boot on a real computer.

There are firmware differences, hardware differences, boot modes, graphics hardware, memory layout, and a lot of other things that a virtual machine can hide from you.

I also realized that I had been thinking too much about getting features working and not enough about building the low-level parts correctly.

So instead of continuing to throw random fixes at the problems, I'm going back and rebuilding the early boot process properly.

Back To The Beginning

The plan for SEA OS is changing.

I want to move away from relying on GRUB and start working on my own bootloader.

I also want to test on real hardware much earlier instead of waiting until everything looks good in QEMU.

The goal isn't just to make something that displays:

SEA OS Kernel Version 0.0.1 Successfully Booted`

I want to eventually have a real operating system with its own boot process, kernel, hardware drivers, keyboard input, graphics, filesystem, and user interface.

Obviously, that's going to take a lot of time.

But that's what makes this project interesting.

The first attempt failed.

Now I know a lot more about what I need to fix.

So... back to the code.

I Need Help From Real Developers

Honestly, this is the point where AI hasn't been helping me.

I've tried using AI to debug the bootloader, fix graphics problems, and get SEA OS working on real hardware. But most of the time, the suggested solutions don't fix the problem, and sometimes they create even more problems.

I don't want to keep changing code without understanding why something works or fails. I want to understand what's happening at the hardware level and learn how to solve these problems properly.

That's why I'm writing this post.

If you have experience with operating system development, x86-64 assembly, bootloaders, kernel development, or graphics initialization on real hardware, I'd really appreciate your help.

I'm especially interested in understanding how to build a reliable bootloader without GRUB and how to initialize graphics and hardware correctly on a real computer.

SEA OS is my own project, and I want to keep building it myself. I'm not looking for someone to make the entire operating system for me. I need guidance from people who understand these low-level systems and can help me learn.

Sometimes, you need a human who can actually understand the problem instead of another suggested fix that doesn't work.

Thank you to everyone willing to help!