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MakeOpenSource Operating System

The major goal of this project is to recreate some of the functionality from a DOS-like operating system.

Objectives (in no particular order)

  • BIOS boot
  • Basic memory initialization
  • PS2 keyboard support (scan code conversion)
  • VGA 40/80 column text mode console
  • Commands (programs)
    • cd
    • pwd
    • ls
    • mkdir
    • rm
    • cp
    • clear (C-L)
    • man
    • vi
    • ed

Contributing

For contributing fork this repository and then make your changes in the form of Pull Requests to the main repository

Building and running

Dependencies

  • make
  • qemu (specifically qemu-system-x86) on debian based systems you can install this with the apt package manager
  • gcc
  • nasm
  • WSL (Windows only)

Building

  • just run make in the root directory of the project

Running

  • run make qemu in the root directory of the project

General behavior

boot and immediately drop to a prompt. programs can be executed from the prompt. send signals by keyboard to do ✨stuff✨.

Resources

FAQ

  • If you get an error like
WARNING: Image format was not specified for 'mOS.bin' and probing guessed raw.
	Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted
	Specify the 'raw' format explicitly to remove the restrictions.

This warning is normal

  • When you run make and you get an error along the lines of /usr/bin/ld: cannot find crt1.o: No such file or directory you likely only have the gcc for your current architecture that is 64bit. You need the 32bit support files. For that you can install them on debian based machines with sudo apt install gcc-multilib