Top Sites>UU-Boot – Universal Bootloader

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# U-Boot

> Universal Bootloader


## Posts

- [Verified Boot for Embedded on RK3399](https://u-boot.org/blog/verified-boot-for-embedded-on-rk3399/): VBE has been a long-running project to create a smaller and faster alternative to EFI. It was originally introduced as a concept in 2022, along with a sandbox implementation and a simple firmware updater for fwupd. In the intervening period an enormous about of effort has gone into getting this landed in U-Boot for a real board. This has resulted in 10 additional series, on top of the sandbox work: A – Various MMC and SPL tweaks (14 patches, series) B – binman: Enhance FIT support for firmware (20 patches, series) C – binman: More patches to support VBE (15 […]
- [Booting into Linux in 100ms](https://u-boot.org/blog/booting-into-linux-in-100ms/): A few weeks ago I took a look at Qboot, a minimal x86 firmware for QEMU which can boot in milliseconds. Qboot was written by Paolo Bonzini and dates from 2015 and there is an LWN article with the original announcement. I tried it on my machine and it booted in QEMU (with kvm) in about 20ms, from entering Qboot to entering Linux. Very impressive! I was intrigued as to what makes it so fast. There is another repo, qemu-boot-time by Stefan Garzarella, which provides an easy means to benchmark the boot. It uses perf events in Linux to detect […]
- [Booting Up the U-Boot Blog!](https://u-boot.org/blog/booting-up-the-u-boot-blog/): Welcome to the new official blog for Das U-Boot! For over two decades, the U-Boot mailing list has been the vibrant hub of our development discussions. While the mailing list remains our primary channel for patches and technical conversations, this blog will serve as a new platform to share deeper insights, project news, and community stories in a more accessible format. As of mid-2025, U-Boot is more critical to the embedded ecosystem than ever. Our development is thriving, with robust support spanning a vast array of architectures from ARM and x86 to the rapidly expanding world of RISC-V. U-Boot provides […]

## Pages

- [Privacy Policy](https://u-boot.org/privacy-policy/): U-Boot Policy Last Updated: June 18, 2025 Welcome to U-Boot.org. This Privacy Policy describes how U-Boot.org (referred to as “we,” “us,” or “our”) collects, uses, and discloses information when you visit and use our website, u-boot.org (the “Site”). We are committed to protecting your privacy and ensuring you have a positive experience while using our Site. As an open-source project, transparency is key, and this policy aims to clearly outline our data practices. 1. Introduction and Purpose This Privacy Policy explains our practices regarding the collection, use, and protection of your information. By using our Site, you agree to the […]
- [Donation](https://u-boot.org/donation/): Support U-Boot Your contributions are vital to the sustained development and maintenance of Das U-Boot. Why Your Support Matters U-Boot is an open-source project and is not controlled by any company. It relies on donations and the goodwill of contributors to keep going. Many U-Boot contributors dedicate their own time to the project, but there are also significant costs associated with running and maintaining a project of this scale. Your financial contributions are vital to sustaining our infrastructure, fostering development, and ensuring the continued evolution of Das U-Boot as the leading universal bootloader. Where Your Donations Go Donations directly contribute […]
- [Donor Dashboard](https://u-boot.org/donor-dashboard/)
- [Donation Failed](https://u-boot.org/donation-failed/): We're sorry, your donation failed to process. Please try again or contact site support.
- [Donation Confirmation](https://u-boot.org/donation-confirmation/)
- [Blog](https://u-boot.org/blog/): U-Boot Blog Stay updated with the latest U-Boot development news, features, tutorials, and community highlights. Search This is my test post Hi, I’m just checking that I can add things here. Yes another post This one I am a contributor Speeding up QEMU # SPDX-License-Identifier: GPL-2.0+ # # (C) Copyright 2000 – 2013 # Wolfgang Denk, DENX Software Engineering, wd@denx.de. Summary: ======== This directory contains the source code for U-Boot, a boot loader for Embedded boards based on PowerPC, ARM, MIPS and several other processors, which can be installed in a boot ROM and used to initialize and test the […]
- [About](https://u-boot.org/about/): About Das U-Boot Understanding the foundational firmware that powers embedded systems worldwide. What is Das U-Boot? Das U-Boot, or the Universal Boot Loader, originated in 1999 as “8xxROM” for PowerPC systems. Under Wolfgang Denk, it transitioned to SourceForge as PPCBoot in October 1999, then expanded to ARM, unifying into the “U-Boot” project. This early architectural broadening established its universal applicability, aiding Embedded Linux adoption. By the mid-2000s, U-Boot supported numerous architectures (ARM, x86, RISC-V), becoming central to embedded Linux with continuously enhanced features like CLI, storage, and network booting. A pivotal shift was Device Tree adoption in 2011, standardizing the […]
- [Home](https://u-boot.org/): Das U-Boot: The Universal Boot Loader Your authoritative hub for information, documentation, and community interaction for the foundational open-source bootloader. Explore Documentation Documentation Access the complete and up-to-date documentation for Das U-Boot. Whether you’re a new user or an experienced developer, you’ll find in-depth guides, technical references, and development insights. For specific searches, use the search functionality directly on docs.u-boot.org. Visit Docs.U-Boot.org Get U-Boot Easily access the latest stable releases and dive into the development tree. Latest Release Stable Releases Development Tree Release Details Stable Releases Download official stable releases of U-Boot. Download Stable Releases Development Tree Explore the cutting-edge […]


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