Proxmox VE on an OVH VPS (2025)

Overview / Motivation This post pertains to OVH&rsquo;s new VPS line as of mid 2025, running on Haswell CPUs, with plans named &ldquo;VPS-n&rdquo;. OVH does not offer Proxmox VE as an OS option on these plans, and does not have any officially-sanctioned method to use a custom ISO. I find this disappointing and frustrating. Even when a host provides a template for the OS I want to use, I like to…