This content originally appeared on DEV Community and was authored by Marcos Oliveira
🔊 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.
This content originally appeared on DEV Community and was authored by Marcos Oliveira
Marcos Oliveira | Sciencx (2025-02-14T21:30:33+00:00) How to Create a Simple Operating System (Kernel Only) with C++. Retrieved from https://www.scien.cx/2025/02/14/how-to-create-a-simple-operating-system-kernel-only-with-c/
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