On this page
Overview
AiOS is an experimental operating-system and systems-engineering project. It explores boot, memory, interrupts, devices, and user space by building and connecting the components.
Architecture
The project spans custom kernel bring-up and later Linux/rootfs integration. The diagram separates the two lines rather than implying the custom kernel implements Linux.
What I built and explored
Boot and output
Limine integration, framebuffer and serial output, and x86_64 kernel bring-up provide an initial debugging path.
Memory
Physical and virtual memory managers, heap work, PML4 page tables, HHDM, high-half layout, and page-table slot work connect physical frames to virtual address assumptions.
Interrupts and timers
GDT, IDT, PIC, and PIT work connect CPU state to interrupt delivery and timing.
Hardware and devices
ACPI, SMBIOS, ATA storage, and e1000 NIC work extend the scope beyond early boot.
Linux and rootfs
Later experiments involve Linux 6.12.95-aios, BusyBox, switch_root, and aios-install. These are integration and installer experiments distinct from the custom kernel's feature set.
Technical decisions and challenges
Serial output makes failure observable before complex facilities exist. Memory mapping and interrupt ordering require explicit invariants. Device discovery, initialization, and the rest of the system must agree.
Current state
Active and experimental. This documented component scope is not a hardware-compatibility matrix; production stability and broad driver support are not claimed.
Roadmap and artifacts
Further verification, boot-to-user-space documentation, device debugging, and installer reliability remain work to do. A project-specific repository, boot screenshots, and raw serial logs have not been supplied. Public code can be found through my GitHub profile.