Holoscan Debian/apt Installation

Purpose

Install the Holoscan SDK C++ runtime + headers on Ubuntu using NVIDIA's apt repo, selecting the right holoscan-cuda-* package for the host's CUDA driver and verifying with the bundled C++ examples.

Prerequisites

• Ubuntu x86_64 (22.04 / 24.04) or ARM64 (Jetson / IGX) with an NVIDIA GPU and working driver (nvidia-smi).
• sudo and network access to developer.download.nvidia.com and docs.nvidia.com.
• cuda-keyring package (Step 2 installs it if missing).

Limitations

• No Python bindings from apt — pair with /holoscan-install-wheel if the user needs Python.
• Ubuntu-only. Other distros must use the container or wheel install.
• Package variant must match the host CUDA driver (holoscan-cuda-12 vs holoscan-cuda-13); wrong variant → "CUDA driver version is insufficient".

Step 0: Consult the Official Install Instructions