bento VS live-custom-ubuntu-from-scratch

The github page has packer templates that you can modify to make your own custom boxes.

- https://github.com/chef/bento/tree/main/packer_templates/windows

I've previously used Hashicorp Packer configs in a private git repo (based on the 'chef bento' configs used for many standard Vagrant boxes) that can build template server images for and then deploy a complete fully unattended CI pipeline from scratch, using nothing more than Apache Subversion (built into CentOS and RHEL but also has an excellent Windows version!) and Jenkins. Takes under 15 mins to provision both and can be tested locally (and completely offline!) in Virtualbox as it uses a limited amount of resources. I developed the solution for a rather risk averse client that required a cheap and easy reusable centrally managed CI pipeline that could handle larger sources than git by default and be built from artefacts on a private 'air-gapped and sheep-dipped' LAN with verified SHA256 hashes for all vendor binaries. Source: https://github.com/chef/bento

This repo has information on how to create a squashFS https://github.com/mvallim/live-custom-ubuntu-from-scratch but you'll have to store it on nfs, smb, or something for pxe to be able to boot it.

E.g https://mvallim.github.io/live-custom-ubuntu-from-scratch/

No promises though - I can point you to this, we got a lot of tips from this repo: https://github.com/mvallim/live-custom-ubuntu-from-scratch

These pages should help you build a custom system based on Ubuntu that is good to begin with, dive into the process. https://github.com/mvallim/live-custom-ubuntu-from-scratchhttps://help.ubuntu.com/community/LiveCDCustomization