Titanoboa (Beta)

A bootc live iso generator. You bring the live session & setup, we make the iso.

Components

• LiveCD

Building a Live ISO

just build ghcr.io/frostyard/snow:latest
just vm ./output.iso

Builder Distribution Support

By default, Titanoboa uses Debian containers for building tools and dependencies. You can specify different builder distributions using the TITANOBOA_BUILDER_DISTRO environment variable:

• debian (default): Uses docker.io/library/debian:trixie
• ubuntu: Uses docker.io/library/ubuntu:noble

Examples:

# Use Ubuntu for building
TITANOBOA_BUILDER_DISTRO=ubuntu just build ghcr.io/your-org/your-image:latest

# Use Debian (default)
just build ghcr.io/your-org/your-image:latest

Secure Boot Support

The ISO is built with Secure Boot support using Debian's signed shim and GRUB binaries:

• shim-signed: Microsoft-signed shim bootloader
• grub-efi-amd64-signed: Signed GRUB EFI binary

These signed binaries are copied from the rootfs container image into the ISO's EFI partition, ensuring compatibility with UEFI Secure Boot.