High Quality | Truenas Scale Virtualbox

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Can you run VirtualBox on TrueNAS SCALE, and if so, how does it compare to native KVM?

This guide covers how to set up and manage Oracle VM VirtualBox on TrueNAS Scale. truenas scale virtualbox

Virtualization allows you to experiment with TrueNAS SCALE’s core functionalities—like , Samba shares , and Apps (containers) —without risking actual data on a physical server.

| Requirement | Recommended Solution | |-------------|----------------------| | | Native KVM via TrueNAS UI | | Legacy OS (pre-2005) | Run VirtualBox inside a KVM VM (nested virtualization) | | Portable VM (OVA/VMDK) | Convert to QCOW2/RAW using qemu-img and import to KVM | | Desktop VM with USB | Use KVM + USB passthrough via virt-manager (install via apt ) | | Lightweight sandbox | Docker container (native on SCALE) | --- End of Paper --- Can you run

While there is no formal academic "paper" on running TrueNAS SCALE specifically in VirtualBox, there are authoritative guides and best practices from TrueNAS Documentation and the community for setting up this environment for testing or development. www.truenas.com Core Configuration Requirements To ensure a stable virtual environment, your VirtualBox VM should meet the following minimum hardware standards: www.truenas.com +1 Processor: At least

| Aspect | KVM (Native) | VirtualBox on SCALE | |--------|--------------|----------------------| | | Yes (TrueNAS UI) | No (community only) | | Kernel Module Risk | None (in-tree) | High (DKMS failures on kernel updates) | | Performance | Near-bare metal | ~85–90% of KVM | | Snapshot Integration | ZFS + libvirt | Manual (VM-level only) | | USB Passthrough | Limited (via SPICE) | Excellent (VirtualBox extension pack) | | Legacy OS (e.g., OS/2) | Poor | Good | and if so

Before starting, adjust these critical settings in the VM menu:

Despite the drawbacks, these scenarios justify VirtualBox:

TrueNAS will now download the container and start VirtualBox.