PelicanHPC is a Debian-based live CD image with a goal to make it simple to set up a high performance computing cluster. The front-end node (either a real computer or a virtual machine) boots from the CD image. The compute nodes boot by Pre-Execution Environment (PXE), using the front-end node as the server. All of the nodes of the cluster get their file systems from the same CD image, so it is guaranteed that all nodes run the same software. The CD image is created by running a single script, which makes it possible to customise the live CD image with extra Debian packages.