Awesome Open Source
Awesome Open Source


Ghost is an operating system for the Intel x86 platform. The project is licensed as GPLv3. The kernel and the userspace applications are written from scratch in C++ and Assembly (and some C). The kernel is not based on any existing kernel and partially Unix-compatible.

This is the main development repository.

Project website:

Status of redux

With redux I started a re-implementation of the kernel which is now present in the master branch. Currently I'm working on rewriting most of the filesystem related calls. Once a ready-to-run version is there, I will post a live CD on the website.

If you are looking for the previous kernel implementation (versions up to 0.5.6b), check the legacy branch out.


See the documentation folder. It contains information about the technical design as well as building instructions.


  • Pure micro-kernel
  • Multiprocessor- & multitasking support (SMP)
  • IPC - pipes, signals, messages, shared memory
  • Window server (GUI with homemade toolkit)
  • Patched GCC (OS specific toolchain)
  • self-made libc
  • libghostapi, extensive kernel API library
  • libstdc++ port
  • libghostuser for simplified file I/O, creating UIs & more...
  • VESA video driver
  • PS/2 keyboard & mouse driver
  • ELF binary support
  • Userspace filesystem driver support
  • Serial COM1 kernel logging
  • Virtual 8086 for BIOS calls
  • Copy-on-write implementation, fork()

Screenshot of 0.5.6b

Ported software

  • musl (libm part of Ghost's libc)
  • cairo
  • freetype
  • libpng
  • pixman
  • zlib
  • nasm
  • bash (in progress)


If you want to get in contact, contribute to the project or have any questions, feel free to contact me at:

[email protected]

-Max Schlüssel

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