---
type: concept
title: PXE Boot
tags: [networking, installation, bios]
related: [device-management-system, opsi]
created: 2026-06-30
updated: 2026-06-30
sources: ["output/rz_uni_greifswald_de_dienste_allgemein_device_management_system_nutzung.md"]
---
# PXE Boot

**PXE (Preboot Execution Environment)** is the technique used by the [[universitatsrechenzentrum-urz]] to initiate the installation of operating systems over the network.

## Implementation at URZ
For the [[device-management-system]] (powered by [[opsi]]) to function, the device must be configured to boot via **PXE IP4**.

### Required BIOS Settings
To enable PXE booting, the following BIOS configurations are typically required:
- **Network Stack**: Enabled, specifically for **IPv4**.
- **IPv6**: Disabled.
- **Secure Boot**: Disabled (this may require a save-and-restart cycle before other settings can be changed).
- **Boot Order**: PXE IP4 must be set as the primary boot device.

## Constraints
PXE booting requires a physical **wired network connection**. Wireless connections (Wi-Fi) cannot be used to initiate the PXE boot process.