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Choose Proxmox if your machine is primarily a virtualization host for Home Assistant and several other virtual machines or containers. Choose Unraid if it is primarily a NAS and application server that will also run Home Assistant. Either can run Home Assistant OS in a virtual machine; the better choice depends on the server’s main job, storage plan, and how much host administration you want to do.
The short answer
For a dedicated home-lab hypervisor, Proxmox VE is the more direct fit. It installs as the host operating system and is built around virtual machines and system containers. For a storage-first server that will provide shares, Docker applications, and occasional virtual machines, Unraid is the more direct fit. Unraid can run Home Assistant either as a virtual machine or as a container, while Proxmox users normally run Home Assistant OS as a VM.
Home Assistant’s own documentation says, “The Home Assistant Operating System is the recommended installation type for most users.” That recommendation matters more than the host brand: HAOS supplies the Supervisor, add-ons (called apps in current documentation), built-in backup workflows, and managed updates. Home Assistant Container is appropriate when you deliberately want to operate the Linux host and container runtime yourself, but it does not include those Home Assistant-managed components.
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Proxmox VE: virtualization first
Proxmox VE is a bare-metal virtualization environment based on Debian GNU/Linux. Its installer takes over the selected machine and can remove existing data from the disks you choose. After installation, the host provides KVM virtual machines and LXC system containers through one management interface.
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This model is a good match when you want clear separation between workloads: Home Assistant OS in one VM, a test Linux server in another, and perhaps additional containers for monitoring or development. You assign CPU, memory, disks, and virtual networking to each workload and manage snapshots, backups, and lifecycle operations from the hypervisor.
Unraid: storage and applications first
Unraid is designed around a storage server that can also run Docker containers and full virtual machines side by side. Its documentation specifically identifies Home Assistant as an application that can run in a container. That flexibility makes Unraid attractive when shared files, media storage, and application containers are as important as virtualization.
The trade-off is architectural rather than a claim about speed. Unraid gives you a broader NAS-and-applications workspace; Proxmox gives you a more focused virtualization host. Neither platform has a universal performance or reliability winner established by the official material used for this comparison.
Decide what the server is mainly for
| If your priority is… | Start with… | Why |
|---|---|---|
| Several isolated VMs, lab networks, and repeatable VM backups | Proxmox VE | The platform is purpose-built around KVM virtual machines and LXC containers. |
| File shares, bulk disks, Docker applications, and some VMs | Unraid | Storage, containers, and VMs are first-class parts of the same server. |
| Home Assistant with the managed Supervisor and apps | HAOS VM on either host | You keep Home Assistant’s recommended operating model while the host handles virtualization. |
| Full control of the container runtime and Linux base system | Home Assistant Container | You accept responsibility for the operating system, runtime, networking, updates, and missing apps. |
Answer these questions before buying hardware:
- Will the machine be unusable as a general-purpose NAS if virtualization is stopped, or is it primarily a lab host?
- Do you need Home Assistant add-ons/apps and one-click managed updates?
- How many other VMs or containers will run at the same time?
- Will Home Assistant need a USB radio, serial adapter, GPU, or another PCI device?
- Are you comfortable reinstalling a machine whose selected disks may be erased?
Choose Home Assistant OS or Home Assistant Container
Home Assistant OS in a VM
HAOS in a VM is the straightforward choice for most home labs. Home Assistant maintains the operating system and Supervisor, exposes its apps, and provides the normal backup and update experience. The hypervisor supplies virtual hardware, while Home Assistant remains an appliance-like guest that is easy to restore or move.
The official Linux VM guide lists a minimum of 2 GB RAM and 2 vCPUs and requires UEFI boot. Those figures describe the Home Assistant VM only. They do not include memory and CPU reserved for Proxmox or Unraid, the storage services, other guests, or any applications running inside Home Assistant. Treat them as a documented floor, not a promise that a busy installation will never need more.
Home Assistant Container
Container deployment is a different operating model. You install and maintain the Linux host, container engine, image updates, volumes, networking, backups, and integrations yourself. Home Assistant apps are not included, so services commonly installed through the Supervisor must be deployed and maintained separately.
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On Unraid, this route can be convenient because Docker is already part of the platform. On Proxmox, you could run a container inside a VM or an LXC environment, but that adds another layer to document and troubleshoot. Select this route because you want that control, not because the word “container” automatically makes the installation simpler.
Plan resources for the whole host
Start with the Home Assistant VM’s documented floor, then budget for the host and every concurrent workload. A practical allocation worksheet should include:
| Resource | What to reserve | What to calculate next |
|---|---|---|
| Home Assistant VM | At least 2 GB RAM, 2 vCPUs, and UEFI boot | Increase allocation if your integrations, history database, or automations grow. |
| Hypervisor | Memory and CPU overhead for management services | Leave headroom so the host is responsive during backups and updates. |
| Other VMs and containers | Their requested memory and virtual CPUs | Account for simultaneous peaks, not just idle figures. |
| NAS and storage services | File-system cache, parity or redundancy work, and applications | Include disk throughput and network traffic during scrub, rebuild, and backup operations. |
Hardware compatibility is workload-specific. Confirm CPU virtualization support, available memory slots, storage-controller behavior, network interfaces, and the exact USB or PCI devices you intend to pass through. The platform documents do not validate any particular motherboard, server model, radio adapter, or GPU combination.
Installing Home Assistant on Proxmox
Plan the installation as a replacement of the selected machine, not as an application you can casually add to an existing desktop. Proxmox’s bare-metal installer uses the machine as the virtualization host and warns that data on selected disks will be removed.
- Inventory and back up the machine. Copy any files from disks that the installer might select. Record network settings, storage identifiers, and the devices you may later pass through.
- Create installation media. Download the Proxmox VE installer image and write it to a USB flash drive or optical disc. Verify that the firmware can boot from that media.
- Install Proxmox on the intended host disk. Select the correct target disk, configure the management network, set the administrator credentials, and confirm the destructive disk warning before proceeding.
- Open the Proxmox management interface. Apply the host’s normal updates, configure storage, and make sure the node has a stable hostname and time source.
- Prepare an HAOS VM. Use the Home Assistant Linux VM procedure, enable UEFI firmware, attach a virtual disk on reliable storage, and allocate at least the documented Home Assistant minimum.
- Connect the VM to your home network. Use a bridge appropriate for your LAN so Home Assistant can discover devices and receive callbacks. Keep management interfaces on a trusted network.
- Boot and finish Home Assistant setup. Confirm that the VM obtains an address, open the Home Assistant onboarding page, and create the administrator account.
- Configure backups before experimenting. Test a Home Assistant backup and a Proxmox-level VM backup, then copy at least one backup set to storage that is not dependent on the running host.
Proxmox’s VM and container model also makes it easy to create a disposable test guest. Do so before changing network bridges, storage mappings, or device passthrough on the production Home Assistant VM.
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Unraid supports two distinct approaches. Running HAOS as a VM preserves Home Assistant’s managed experience; running Home Assistant Container uses Unraid’s Docker workflow but leaves operating-system and application management to you.
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HAOS as an Unraid virtual machine
- Prepare the Unraid boot device and storage. Follow Unraid’s installation process, identify which disks belong to the array or pools, and preserve anything that is not backed up.
- Enable hardware virtualization in firmware. Confirm that the processor and motherboard expose the required virtualization features and that the host boots reliably from its configured device.
- Create a VM for Home Assistant OS. Choose UEFI firmware, assign the documented minimum resources or more, attach a virtual disk, and select a bridged or otherwise suitable virtual network.
- Boot the guest and complete onboarding. Verify network reachability, finish the Home Assistant setup, and install only the apps and integrations you need.
- Back up both layers. Use Home Assistant’s own backup mechanism and protect the VM definition and virtual disk through your Unraid backup plan.
Home Assistant Container on Unraid
- Choose persistent storage. Put the Home Assistant configuration directory on storage included in your backup plan, not on an unprotected temporary location.
- Deploy the container with deliberate networking. Select the network mode required by your devices and integrations, map the configuration directory, and document every environment variable and port.
- Take responsibility for updates. Track the Home Assistant image, the container engine, the host operating system, and any companion services separately.
- Replace missing apps yourself. If you need a service normally supplied through the Supervisor, deploy and secure an equivalent container and include it in your backup and update procedures.
Do not describe the container route as HAOS. It does not provide the Supervisor or Home Assistant apps simply because both installations run on Unraid.
Storage, backups, and migration
Use separate failure domains
A host that stores your files and runs your automation has two kinds of failure to plan for. A disk, pool, or file-system problem can affect both the NAS and the virtual machines; a host configuration mistake can stop every guest at once. Keep copies of Home Assistant backups outside the VM or container, and keep a copy of critical host configuration outside the host.
Make restores part of the design
A backup is useful only if you can restore it. Test a Home Assistant restore on a temporary VM or spare host, record the network and storage steps, and keep recovery credentials available. For Proxmox, protect the VM backup and its configuration. For Unraid, protect the VM or container configuration, persistent data, and the host’s boot configuration as appropriate.
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Home Assistant’s own backup and restore workflow is the cleanest way to move an installation between Proxmox and Unraid. Before the move, document static IP reservations, USB or PCI assignments, add-on dependencies, and integration credentials. After restoring, check device paths and network discovery; virtual hardware identifiers and interface names may change even when the Home Assistant data is intact.
USB, PCI, and network considerations
Home-automation installations frequently depend on a Zigbee, Z-Wave, Bluetooth, serial, audio, or other adapter. Passing a device through to a VM can make the guest dependent on a particular physical port or controller. Before purchasing hardware, verify that the exact device can be passed through on the chosen platform and that the host will not also need it.
- Prefer a stable physical connection and label the port used by the automation adapter.
- Keep a backup path for integrations that would be unavailable if the adapter fails.
- Check whether a USB controller, rather than an individual device, must be passed through.
- Document how the device appears after a reboot or host update.
- Do not assume that a device supported by Home Assistant is automatically supported by every hypervisor configuration.
Use bridged networking when local discovery protocols require the guest to appear directly on the LAN. If you isolate management, storage, and automation traffic into separate networks, verify multicast, firewall, and routing behavior for each integration instead of copying a generic VLAN recipe.
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Managing the host from Home Assistant
Home Assistant includes an integration for monitoring Proxmox nodes, VMs, and containers and, where permissions allow, issuing control actions. The documentation recommends a dedicated Proxmox user with the minimum permissions required; API tokens are also described as an option. Use that integration as an observability and convenience feature, not as the deciding factor between platforms.
If Home Assistant can shut down or restart the host, treat those permissions as powerful automation credentials. Keep destructive actions out of broad presence or voice automations, require an explicit condition for host power operations, and retain an independent way to reach the hypervisor if Home Assistant is offline.
Costs and licensing
These prices are the published figures checked in 2026 and can change. Proxmox amounts are in euros, are per occupied CPU socket, and may have VAT added. Unraid amounts are in US dollars and are one-time license prices; the update terms differ by tier.
| Option | Published price | What the price means |
|---|---|---|
| Proxmox Community | €120 per year per occupied CPU socket | An optional subscription positioned for home labs, technical learning, and other non-production use; it is not required to run Proxmox VE. |
| Proxmox Basic | €370 per year per CPU socket | Paid service tier with support and repository benefits. |
| Proxmox Standard | €550 per year per CPU socket | Higher support and repository service tier. |
| Proxmox Premium | €1,100 per year per CPU socket | Highest listed support tier. |
| Unraid Starter | $49 one time | Up to six storage devices and one year of updates. |
| Unraid Unleashed | $109 one time | Unlimited storage devices and one year of updates. |
| Unraid Lifetime | $249 one time | Unlimited storage devices and lifetime updates. |
| Unraid update extension | $36 per year for Starter or Unleashed | An optional update extension; the perpetual license remains yours even if you do not continue the extension. |
Do not compare the euro and dollar totals as if they were the same currency, and do not treat a Proxmox subscription as a per-core software license. Recheck the vendor pricing pages immediately before purchase.
Common pitfalls and recovery paths
Installing the host on the wrong disk
The bare-metal Proxmox installer can erase selected disks. Stop before confirming the target and restore any needed files from backup. On either platform, disconnect or clearly identify disks that must not be touched.
Allocating only the VM minimum
The Home Assistant minimum leaves no allowance for the hypervisor, NAS services, or other guests. If the host swaps, becomes unresponsive during backups, or repeatedly kills workloads, reduce concurrent guests or add memory and CPU capacity rather than blaming Home Assistant.
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Expecting Container to behave like HAOS
Container installations do not gain the Supervisor or apps. If you need those features, rebuild as an HAOS VM or explicitly deploy and maintain replacement services.
Losing devices after a reboot
Check the VM’s passthrough mapping, physical port, host permissions, and whether the device is claimed by another guest. Record stable identifiers and test a cold reboot before relying on the integration.
Using one backup copy
If the only backup is inside the failed host, it is not a recovery plan. Keep an independent copy and perform a restore test before making major host, storage, or Home Assistant changes.
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Over-permissioning management integrations
Create a dedicated account or token with the least privilege needed. Avoid granting Home Assistant broad host-control rights when read-only monitoring is sufficient.
A practical decision checklist
- Choose Proxmox VE when virtualization is the primary purpose, you expect several isolated guests, and you are comfortable managing a dedicated hypervisor.
- Choose Unraid when shared storage and applications are primary, you want Docker alongside VMs, and you prefer a storage-centered administration model.
- Choose HAOS in a VM when you want Home Assistant’s recommended managed experience.
- Choose Home Assistant Container only when controlling the host and container stack is an intentional requirement.
- Reserve resources for the complete host, not just the Home Assistant guest.
- Confirm device passthrough and network-discovery requirements before buying hardware.
- Back up and test restoration at both the Home Assistant and host layers.
- Recheck current licensing prices, VAT, update entitlements, and support terms before committing.
Verdict
There is no platform-independent winner. Proxmox is the cleaner choice for a Home Assistant-centered virtualization lab; Unraid is the cleaner choice for a NAS-centered server that also runs Home Assistant and containers. In either case, run Home Assistant OS in a VM unless you specifically want to own the additional work of a container deployment. That combination aligns the host with its real job while preserving Home Assistant’s supported, managed operating model.
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