How to Create a Simple Operating System (Kernel Only) with C++

🔊 In this video I showed step by step the process to create a kernel which is the basis for an Operating System. The boot was performed on the physical machine and we were able to print directly to the VGA with a 32-bit system made with C++ and GNU Assembler.

To build on your machine

Use the package manager to install GCC, make, as and ld

sudo apt install build-essential

Clone the repository and compile:

Then just compile:

git clone https://github.com/terroo/terminalroot-os
cd terminal-root-os/
make

To test on QEMU, for example

sudo apt install qemu-kvm

And then test:

qemu-system-i386 -kernel terminal-root-os.bin

Even with qemu-system-x86-64 -kernel terminal-root-os.bin.

If you have a virtual or physical machine with GRUB Legacy, you can move to /boot and edit grub.cfg:

Example:

sudo mv terminal-root-os.bin /boot/
sudo vim /boot/grub/grub.cfg

Add a new entry to GRUB:

### BEGIN TERMINALROOTOS

menuentry 'Terminal Root OS' {
  multiboot /boot/terminal-root-os.bin
  boot
}
### END TERMINALROOTOS

Watch the Video

The video is in Portuguese, but you can use Youtube's automatic translator

Click on the image to watch the video

Terminal Root OS repository on GitHub: https://github.com/terroo/terminalroot-os.