NAS Systems VM Creation

ProxMenux provides automated scripts that create and configure virtual machines for various NAS systems on Proxmox VE. This documentation covers the VM creation process for TrueNAS SCALE, TrueNAS CORE, OpenMediaVault, and Rockstor.

Script Overview

The VM creation script for NAS systems automates the process of setting up virtual machines optimized for running various Network Attached Storage solutions. The script handles all aspects of VM configuration, including hardware allocation, disk setup, and boot options.

The script simplifies the VM creation process by offering the following options:

Selection of default or advanced configuration
Configuration of CPU, RAM, BIOS, and machine type
Choice between virtual disk or physical disk passthrough
Selection of disk interface type (SCSI, SATA, VirtIO, or IDE)
Automatic configuration of EFI and TPM when required
Automatic mounting of installation ISO images

Default and Advanced Configuration

The script offers two configuration modes:

Default Configuration

If you select default configuration, the script will automatically apply the following values:

Parameter	Default Value
Machine Type	q35
BIOS Type	OVMF (UEFI)
CPU Type	Host
Core Count	2
RAM Size	8192 MB
Bridge	vmbr0
MAC Address	Automatically generated
Start VM on Completion	No

If you want to customize the configuration, select the Advanced Settings option in the menu.

Advanced Configuration

If you select advanced configuration, the script will allow you to customize each parameter:

Parameter	Options
Machine Type	q35 or i440fx
BIOS Type	OVMF (UEFI) or SeaBIOS (Legacy)
CPU Type	Host or KVM64
Core Count	Number of CPU cores
RAM Size	Amount of memory allocated to the VM
Bridge	Network bridge for connection
MAC Address	Custom MAC address
VLAN	VLAN tag (if used)
MTU	Maximum Transmission Unit size

Disk Interface Selection

Unlike the Synology-specific script, this script allows you to choose the disk interface type for both virtual and physical disks:

Interface Type	Description	Best For
SCSI	Modern interface with good performance and features	Recommended for Linux and Windows (includes discard/trim support)
SATA	Standard interface with high compatibility	Good general-purpose choice (includes discard/trim support)
VirtIO	Paravirtualized interface with highest performance	Advanced users seeking maximum performance (includes discard/trim support)
IDE	Legacy interface with maximum compatibility	Legacy systems only (no discard/trim support)

Disk Selection

Once the machine is configured, the script allows you to choose between two types of disks:

Virtual Disk

The script lists the storage options available in Proxmox
The user selects the disk and size in GB
The virtual disk is automatically assigned to the VM using the selected interface type (SCSI, SATA, VirtIO, or IDE)
Multiple disks can be added and will be assigned sequential device numbers (e.g., scsi0, scsi1, etc.)

Physical Disk Passthrough

The script detects all available physical disks
The user selects the physical disk or disks they want to use
The physical disk is directly assigned to the VM via passthrough using the selected interface type (SCSI, SATA, VirtIO, or IDE)
Multiple disks can be added and will be assigned sequential device numbers (e.g., scsi0, scsi1, etc.)

Additional Features

EFI Disk Configuration

When UEFI BIOS (OVMF) is selected, the script automatically configures an EFI disk:

The script prompts for storage location for the EFI disk
A 4MB EFI disk is created and configured
The EFI disk is properly formatted based on the storage type (raw format for directory-based storage)

ISO Mounting

The script handles ISO mounting for installation:

The installation ISO is automatically mounted to the ide2 device
For Windows VMs, VirtIO driver ISO can be automatically downloaded and mounted to ide3

QEMU Guest Agent

The script automatically configures QEMU Guest Agent support:

Enables the QEMU Guest Agent in the VM configuration
Sets up the necessary communication channel
Provides instructions for installing the guest agent inside the VM after installation