FrostByte

FrostByte (sometimes refered to as "FrostByte OS" or "FBOS") is a hobbyist from-scratch operating system made by HarryDoesTech. FrostByte is the sucessor of CakeOS.

Issues

If you encunter any issues please open an issue ticket or email frostbyte.operatingsystem@gmail.com

Building

This repository currently contains the entire opearting system, including the userland. But that is a subject to change very soon, THis repo will only contain the kernel and init system,standard C library,coreutils etc will be in seperate repositories

Dependencies

• GNU make (BSD make won't work)
• i686-elf-gcc or i386-elf-gcc
• nasm
• qemu-system-i386 (optional, but if you want make run to work)

recommended to build on Linux (I personally use Mint so i'm not too sure about other distros) but any other unix-like, e.x freeBSD, mac osx will work

Command

git clone https://github.com/FrostByteOS-project/FrostByteOS.git
cd FrostByteOS
make

If you're on a BSD:

gmake

if you want to run it in QEMU

make run

note, this'll also rebuild it

if you'd like to use i386-elf-gcc

make CC=i386-elf-gcc

if you run

make -j$(nproc)

it will build the kernel, but fail on the userspace because of a race condition in the Makefiles i just can't fix. just run make after make -j$(nproc) without the -j flag and it'll build the userspace, initramfs and iso

Requirements to run

• a VM or physical machine with BIOS or alternatively UEFI with CSM
• for real hardware like any PC made since ~1998 should work:
• 6MB of ram minimum (conservative value, depends on the size of the initramfs and grub configuration)
• An IA-32 or amd64 CPU
• PS/2 keyboard and (optional) mouse
• VESA-capable GPU
• (optional) an IDE hard drive

Notes

• The execution path by default is /bin/init -> /bin/login`.
• Currently only supports BIOS and x86, amd64 and UEFI support will be added in the future.
• Uses GRUB, will probably create a custom bootloader in the future.
• Uses ELF32 for binaries
• Forces VESA 1024x768x32 for the TTY console; will add fallback to standard VGA text mode later via kernel parameters
• FrostC is very basic, it you really want to run alot of POSIX software on the OS just compile newlib for it

TODO

• Add UEFI support
• Add USB support
• Improve scheduler
• ATAPI support
• SATA and AHCI support
• PCIE detection
• TCP/IP subsystem and network card drivers

Credits

Special thanks to:

@papaj2139 for helping out refactor the code