Proxmox

In BIOS, enable SVM (cpu virtualization) (you need a modern AMD or Intel chipset)
Get the latest proxmox release ISO, dd it to a thumb drive (use Flash_Drives SAM 64 EVO)
Boot and install onto the primary drive over any existing OSes
During install, use ext4
- I deemed ZFS too fancy, it's basically software raid, and troublesome according to some
Place ISOs in /var/lib/vz/template/iso
VM install from ISO
- When installing a VM from an ubuntu ISO, install to the drive allocated for the ISO.
- Proxmox is smart enough to allow this, the install ISO ends up as a DVD drive.
- Once VM install is completed, remove the DVD
  - sudo umount /dev/sf0 (or whatever)
  - Proxmox > (VM) > hardware > DVD > remove
  - Proxmox > (VM) > shutdown, then start

VMs on melange: