miniOS

A minimal x86_64 operating system kernel written in Rust. Boots from UEFI, has a basic scheduler, and runs in QEMU.

active

Rust x86_64 UEFI QEMU

Blog Code

Overview

miniOS is a hobby OS project for learning low-level systems programming.

Implemented

UEFI bootloader
Physical & virtual memory management
Basic preemptive scheduler
PS/2 keyboard driver
VGA text mode output
Simple shell

Boot Sequence

UEFI → bootloader → kernel_main → init_memory → init_interrupts → scheduler → shell

Building & Running

cargo build --target x86_64-unknown-none
qemu-system-x86_64 -bios OVMF.fd -drive format=raw,file=target/boot.img