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Tiny-OS: Build Your Own Operating System

Learning by doing

Overview

For beginners in operating system development, particularly those intrigued by Linux, creating a mini Unix-like OS is an enlightening journey. Tiny-OS, designed with simplicity in mind, is a compact OS that serves as an excellent reference for such endeavors. It's a practical approach for understanding OS principles, offering a glimpse into Linux-like implementations. The project, detailed in a Linux kernel style documentation, minimizes confusion and enhances comprehension. It's not just about learning theories but actually building and experimenting, which Tiny-OS facilitates perfectly for anyone starting in the fascinating world of OS development.

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Features

  • Process/Thread Management: Creation, switching, and scheduling of processes and threads.
  • Segmentation and Paging in Virtual Memory: Implements segmented paging for virtual memory management.
  • Process Heap Memory Management: Manages heap memory for processes.
  • I/O System: Includes drivers for hard disks and keyboards.
  • File System: Basic file system functionalities.
  • System Interaction: Simple shell supporting basic commands, fork system calls, and user process loaders.
  • Lock Mechanisms: Synchronization for multi-threading and multi-processing.

Getting Started

Clone the Repository

git clone git@github.com:Elite-zx/Tiny-OS.git
cd Tiny-OS

Compile and Run

Compile the OS with:

./run.sh
make all

Write the compiled kernel to a disk image:

dd if=build/kernel.bin of=/path/to/bochs/hd60M.img bs=512 count=200 seek=9 conv=notrunc

Launching Tiny-OS

Run the OS using Bochs:

bochs -f bochsrc.disk

Ensure Bochs is installed and bochsrc.disk is properly configured.

Contributing

Contributions are welcome! Feel free to submit PRs or open issues for suggestions or bug reports.