Ghost is a hobby operating system for the Intel x86 platform. The OS is written from scratch in C/C++ and Assembly. The kernel is not based on any existing kernel, but is partially compatible to Unix.

This is the main development repository.

Update 2020/10/08: With the recent backmerge I've fixed a lot of bugs in the kernel and rewrote a lot of the user-space code. Still work-in-progress, working towards a version 1.0.0.

Project website: http://ghostkernel.org/

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

A usually up-to-date version of the documentation is provided here: https://ghostkernel.org/documentation/

• Currently x86-based
• Micro-kernel
• Multiboot-compliant
• Multi-processor (SMP) & multi-tasking support
• IPC; pipes, messages, shared memory
• libghostapi, kernel API library
• Home-made libc
• ELF binary & shared library support
• OS specific GCC toolchain
• C++ support
• Window server (GUI with home-made toolkit)
• VESA/VBE video driver
• PS/2 keyboard & mouse driver
• Serial COM1 kernel logging
• VM86 mode for BIOS calls

• musl (provides libm part of Ghost 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