This is an operating system kernel I wrote back in High School. Currently, the only two things you can do are display help and clear the screen, but I may begin working on this project again soon.

To build, simply type make. This will generate the kernel.bin file in the intermediate directory.

Before emulating the kernel, we'll first make an image file. First create an environment variable called GULBUNTU_ROOT that points to the project root directory. You may want to put this in your .bashrc.

export GULBUNTU_ROOT=/path/to/root/directory/

Then type the following command:

scripts/package.sh

Note: You may have to make the Bash script executable by running chmod +x scripts/*.sh

Now we should have a floppy.img file in the bin folder. This image can be burned onto a CD, but we'll be emulating it using Qemu.

To install Qemu using apt-get, type the following command:

sudo apt-get install qemu

You can see the Qemu binaries that were installed by typing qemu and then pushing tab. On my 64-bit system I would use qemu-system-x86_64. Run the following command, replace the Qemu binary with the appropriate one for your system.

qemu-system-x86_64 bin/floppy.img

Qemu should boot into Grub. In Grub, type kernel 200+50 (Note that 50 technically isn't the correct number here, but it works. I'll figure out the actual number eventually). After this type boot and the OS should start.