Unlike VirtualBox and other Type-2 hypervisors, Proxmox leverages the Kernel Virtual Machine (KVM) module of Linux, meaning ...

For instance, most home labbers swear by Proxmox, a simple yet high-performance platform that's full of useful features.

Getting into the terminal in recovery mode, it appears there's only one logical partition -- the one Proxmox is running on, taking up the full terabyte on the internal NVME.