What is AuroraOS?

AuroraOS is a lightweight operating for the x86_64 architecture written in modern C. It is designed to be portable and to be as optimized as possible.

It is created by a solo developer, this project does not have any regular contributors at this moment.

This project is in development and accepting both PRs and feature requests — Don't be a stranger! If you want to contribute, just get in touch via Codeberg or via our official project thread in the osdev discord server

Features implemented

Limine-based operating system with both QEMU and ISO support.
Virtual file system which has many drivers, some include tmpfs, tarfs, devfs, procfs, and sysfs.
Processes, threads, scheduler, fork, exec, and waitpid are implemented. c
Userspace is implemented (it's able to run ELF's in userspace).
The standard C library is implemented with the help of mlibc
Many syscalls, which are all POSIX-compliant.
IPC supports pipes, futexes, shared memory, message queues, signals, and partly unix sockets.
Device and platform support for ACPI, PCI, timers, framebuffer, TTY, PTY, keyboard, and urandom

Ported software

bash
binutils
coreutils
fastfetch (not finished)
gcc
gzip
make
ncurses
openrc (not finished)
python
readline
sl
vim
xorg (not finished)
zlib

Supported Operating Systems

Linux

The operating should ideally be built on Linux.

Windows

Windows is not well supported, currently I recommend you enable WSL for building the operating system on Windows.

Getting started

1. Build the OS:

$ git clone https://codeberg.org/aurora-org/AuroraOS.git
$ cd AuroraOS
$ meson setup build
$ meson compile -C build iso

2. Run the OS with QEMU:

$ qemu-system-x86_64 --drive format=raw,file=auroraos.img -serial stdio -no-reboot -d guest_errors,int,pcall,unimp,out_asm -D debug.log

Remove the -monitor stdio and use -nographic to run it just in the terminal.

‍Advice:
Use meson compile -C build run to build and run the OS.

Building on real hardware... So you are building AuroraOS on real hardware, I wouldn't recommend it but here is how.

$ meson compile -C build iso

Burn the auroraos.iso onto a bootable USB, this might work or not.. Good luck!

External dependencies

The following third-party software is currently used:

Limine A modern, portable, multiprotocol bootloader and boot manager. License: BSD-No-Disclaimer-Unmodified
Flanterm A fast terminal emulator with support for multiple output backends. License: MIT
OBSD Freestanding C Headers A collection of freestanding C headers for use with GCC or Clang. License: 0BSD
mlibc A portable, fully featured C standard library. License: MIT
uacpi A portable and easy-to-integrate implementation of the Advanced Configuration and Power Interface (ACPI). License: MIT