Lyre is an effort to write a modern, fast, and useful operating system.

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• Keeping the code as simple and easy to understand as possible, while not sacrificing performance and prioritising code correctness.
• Making a usable OS which can run on real hardware, not just on emulators or virtual machines.
• Targetting modern 64-bit architectures, CPU features, and multi-core computing.
• Maintaining good source-level compatibility with Linux to allow to easily port programs over.
• Having fun.

Note: Lyre is still pre-alpha software not meant for daily or production usage!

Photo by Pixabay

You can grab a pre-built nightly Lyre image at https://github.com/lyre-os/lyre/releases

Make sure to boot the ISO with enough memory (8+GiB) as, for now, Lyre loads its entire root filesystem in a ramdisk in order to be able to more easily boot on real hardware.

The following is a distro-agnostic list of packages needed to build Lyre.

Skip to a paragraph for your host distro if there is any.

GNU make, curl, git, mercurial, bsdtar, xorriso, and qemu to test it.

sudo apt install make curl git mercurial libarchive-tools xorriso qemu-system-x86

sudo pacman -S --needed make curl git mercurial libarchive xorriso qemu

To build the distro, which includes the cross toolchain necessary to build kernel and ports, as well as the kernel itself, run:

make distro-base # Build the base distribution.
make all         # Make filesystem and ISO.

This will build a minimal distro image. The make distro-full target is also avaliable to build the full distro; this step will take a while.

In Linux, if KVM is available, run with

make run-kvm

In macOS, if hvf is available, run with

make run-hvf

To run without any acceleration, run with

make run