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Create VM: System NAS

Virtual Machines~3 minView script

ProxMenux supports seven NAS operating systems as dedicated VMs, plus an optional Umbrel OS path via a community script. Most systems share the same auto-ISO flow; Synology DSM uses a specialised loader wizard.

How the NAS selector works

The NAS selector detects the latest stable release of each appliance (querying its upstream mirror), downloads the ISO — or builds the VM from a pre-packaged image — and then hands over to the generic ProxMenux VM wizard for CPU, RAM, disk and network configuration.
ProxMenux System NAS selector
System NAS selector

Supported NAS systems

Synology DSM

DiskStation Manager with the ARC / RR loader. Requires configuring the loader before first boot.

Loader flow
Base
Linux (custom)
Filesystem
Btrfs, ext4
View details

TrueNAS SCALE

Debian-based TrueNAS with Docker / Kubernetes apps and ZFS as primary filesystem.

Auto-ISO flow
Base
Debian Linux
Filesystem
ZFS
View details

TrueNAS CORE

FreeBSD-based TrueNAS. Enterprise-grade ZFS storage with jails and plugins.

Auto-ISO flow
Base
FreeBSD
Filesystem
ZFS
View details

OpenMediaVault

Lightweight Debian-based NAS with a modular plugin architecture. Great for older hardware.

Auto-ISO flow
Base
Debian Linux
Filesystem
ext4, XFS, Btrfs
View details

XigmaNAS

FreeBSD-based NAS — the original successor to FreeNAS, focused on ZFS and simplicity.

Auto-ISO flow
Base
FreeBSD
Filesystem
ZFS, UFS
View details

Rockstor

openSUSE-based NAS built around Btrfs. Rock-ons (Docker apps) extend functionality.

Auto-ISO flow
Base
openSUSE Leap
Filesystem
Btrfs
View details

ZimaOS

Lightweight NAS OS focused on media, Docker apps and home automation. Uses its own installer.

Dedicated script
Base
Debian / CasaOS
Filesystem
ext4
View details

Community option: Umbrel OS

The 8th entry in the NAS menu is Umbrel OS. It runs a community-scripts installer maintained outside ProxMenux, so it is not documented here. The installer handles the entire lifecycle and prints its default credentials at the end.

ZFS memory rule of thumb

If you pick a ZFS-based NAS (TrueNAS, XigmaNAS), allocate at least 8 GB RAM to the VM — ZFS uses free memory as ARC cache and performance degrades noticeably below that. Rockstor (Btrfs) and OMV (ext4) are far less memory-hungry.

Related

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