AstralOS

A Simple AMD 64 UEFI EXT4 Operating System made in C and C++.

Building

If you are using WSL, make sure you use the build with NBD. There is an msi in the root dir with NBD. To build on Windows, install WSL (Windows Subsystem For Linux) and upgrade your distro to WSL 2. Then initialize cmake by running:

cmake -B .

To install Dependencies and setup directories run:

cmake --build . --target init

Then Build the Bootloader and Kernel by running:

cmake --build . --target build

To test the build just run

cmake --build . --target run

Testing

If you would like to test the OS. Get the newest release, clone the repo and put the Image in AstralOS.Testing. Then just go inside AstralOS.Testing and run:

sudo qemu-system-x86_64 -machine q35 -cpu qemu64 -m 4G -drive file=AstralOS.qcow2 -drive if=pflash,format=raw,unit=0,file="../OVMFbin/OVMF_CODE-pure-efi.fd",readonly=on -drive if=pflash,format=raw,unit=1,file="../OVMFbin/OVMF_VARS-pure-efi.fd" -net none

Features

• Paging
• GDT
• IDT
• Heap Allocator
• ACPI
• APIC
• PCI
• PCIe (UNTESTED)

Thanks

OSDev Wiki
Poncho for the Poncho OS Paging Setup
Android Bionic LibC
UEFI:NTFS