I'm planning on installing Proxmox VE 2.0 on my HP MicroServer and I'm wondering what the minimum amount of space needed for the host OS is. Somewhere in my apartment I have an 8GB thumb drive but all I can find now is a 4GB drive. Is 4GB enough space or do I need to find my 8GB drive? My VMs will be stored on a 250GB SATA drive.