Turning a Raspberry Pi 5 into a Proxmox Virtualization Host

Performance Expectations and Limitations

Tech enthusiasts can now repurpose their Raspberry Pi 5 devices to run Proxmox VE, transforming the compact single-board computer into a functional virtualization host. This development, reported in September 2026, opens new possibilities for hobbyists and educators seeking affordable ways to experiment with container and virtual machine management. While not officially supported, the setup demonstrates the growing capability of ARM-based hardware in server-like roles.

The process involves installing a modified version of Proxmox VE tailored for ARM architecture, which requires careful configuration of the Raspberry Pi 5’s 8GB RAM and PCIe capabilities. Users must flash a custom image, adjust kernel parameters, and ensure adequate cooling due to sustained workloads. Simon Batt, a technology writer with a background in computer science and indie game development, documented the procedure after testing it on his own hardware. He noted that while performance is limited compared to x86 systems, basic virtual machines and containers can run successfully for light tasks such as web servers, development environments, or network tools.

Is This Suitable for Production Use?

The Raspberry Pi 5’s ARM processor delivers sufficient power for lightweight virtualization but struggles with resource-intensive workloads. Batt emphasized that running multiple Windows VMs or heavy databases is impractical, though Linux-based containers operate smoothly. Storage speed becomes a bottleneck unless using fast NVMe drives via the PCIe interface, which many users leverage to improve disk I/O. Network performance remains adequate for testing scenarios, especially when using VLANs or bridged adapters for lab setups.

Despite its novelty, Batt explicitly advises against deploying this configuration in production environments. The lack of official support, potential stability issues under prolonged load, and absence of hardware-certified drivers make it unsuitable for critical systems. Instead, he positions the project as a learning tool—ideal for students, home lab builders, or anyone wanting to understand virtualization concepts without investing in expensive hardware. The community response has been enthusiastic, with forums sharing tweaks to optimize memory usage and reduce overhead.

Can I run Docker containers alongside VMs on this setup? Yes, Proxmox VE supports both LXC containers and QEMU/KVM virtual machines, allowing users to run Docker inside privileged containers or directly on the host if needed, though resource isolation should be monitored.

Frequently Asked Questions

What storage configuration works best? Using an NVMe SSD connected through the Raspberry Pi 5’s PCIe slot significantly improves performance over microSD cards, especially for VM disk images and container layers, reducing latency during read/write operations.

How much RAM should I allocate to virtual machines? Given the 8GB total memory, Batt recommends reserving at least 2GB for the host system and splitting the remainder based on workload—typically 512MB to 2GB per lightweight VM or container to avoid swapping.