Q：什么是 U-Boot？它在嵌入式系统中的作用是什么？ U-Boot 定义：Universal Bootloader（通用引导加载程序），开源、跨架构（ARM/x86/MIPS 等）的嵌入式 Bootloader，由德国 DENX 团队维护，是嵌入式领域事实标准。 核心作用： 硬件初始化：上电完成 DDR、时钟、串口、存储 ...

本文基于 armv8 架构来对 u-boot 进行启动流程分析，u-boot版本为2022-01。 首先引用wiki上的简介：u-boot 是一个主要用于嵌入式系统的引导加载程序，可以支持多种不同的计算机系统结构。 u-boot最先是由德国DENX软件中心团队开发，后续众多有志于开放源码bootloader移植 ...

It is no secret that Linux has won the race in the embedded device marketplace. Tremendous advantages in Linux have broken almost every barrier to entry for using Linux on embedded systems across a ...

One of the last things the Linux kernel does during system boot is mount the root filesystem. The Linux kernel dictates no filesystem structure, but user space applications expect to find files with ...

Booting a computer is always more complex than one wants to think. On the PC side, it looks as if BIOS finally is retired and replaced by EFI (I wonder which was the last OS to use BIOS for anything ...

I'm going to start this post by saying something that a lot of people will find surprising. There are a lot of things that I like about UEFI firmware and the UEFI boot process. I think it is an ...

For some time now I have gotten a slow but steady volume of requests that I write about UEFI firmware and EFI boot relative to installing and maintaining Linux. As a result of a casual comment I made ...