https://github.com/AgentD/diy-linux-guide

An LFS like guide for cross-bootstrapping a small system for the Raspberry Pi
https://github.com/AgentD/diy-linux-guide

cross-compiler cross-toolchain embedded lfs linux raspberry raspberry-pi raspberrypi rpi

Last synced: 4 months ago
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An LFS like guide for cross-bootstrapping a small system for the Raspberry Pi

• Host: GitHub
• URL: https://github.com/AgentD/diy-linux-guide
• Owner: AgentD
• Created: 2020-01-10T17:06:18.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2021-04-17T21:07:02.000Z (almost 4 years ago)
• Last Synced: 2024-04-09T10:34:48.001Z (11 months ago)
• Topics: cross-compiler, cross-toolchain, embedded, lfs, linux, raspberry, raspberry-pi, raspberrypi, rpi
• Language: Shell
• Size: 2.47 MB
• Stars: 35
• Watchers: 5
• Forks: 6
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Building a small Raspberry Pi System from Scratch

What you are looking at right now is a collection of instructions on how to

bootstrap a tiny system for a Raspberry Pi 3 board.

We will bootstrap the system by building our own cross compiler toolchain

and then using it to cross compile everything we need for a working Linux

based OS.

In contrast to similar guides, I try to explain why we are doing the things

the way we are doing them, instead of just throwing a bunch of copy-paste

command lines around (I'm looking at you, LFS).

This guide is divided into the following parts:

* [Basic Setup](00_setup.md). Lists some tools that you should have

  installed and walks through the steps of setting up the directory tree that

  we work in, as well as a few handy environment variables.

* [Building a cross compiler toolchain](01_crosscc.md).

* [Cross compiling a statically linked BusyBox and the kernel](02_kernel.md).

  The BusyBox is packaged into a small initramfs. We will make it boot on the

  Rapsberry Pi and explore some parts of the Linux boot process.

* [Building a simple userland](03_basic_usr.md). Mostly a

  Linux-From-Scratch-Style walkthrough to building some packages for a simple

  GNU userland. The userland is packed into a SquashFS image. The BusyBox

  based initrd is modified to mount it and switch into it.