cGandom

Emulating Raspberry Pi 4 with Qemu

Just a quick update before we dive in: what we're actually doing here is running Raspberry Pi OS (64-bit) on a QEMU virtual ARM setup. This isn't full-blown hardware emulation of the Raspberry Pi 4, but more about creating a virtual environment for the OS. It doesn't mimic all the specific hardware features of the Pi 4, but it's pretty useful and great for general testing. I turned to this solution mainly to extract a modified sysroot from the Raspberry Pi OS, something not readily available in other resources. For those looking into detailed emulation of the actual Raspberry Pi 4's hardware in QEMU, check out this link for the latest updates: https://gitlab.com/qemu-project/qemu/-/issues/1208.

Hope it helps! :D

Shortcomings: No GUI yet, only console.

Steps

jauderho

### WARNING: READ CAREFULLY BEFORE ATTEMPTING ###
#
# Officially, this is not recommended. YMMV
# https://www.raspberrypi.com/news/bookworm-the-new-version-of-raspberry-pi-os/
#
# This mostly works if you are on 64bit. You are on your own if you are on 32bit or mixed 64/32bit
#
# Credit to anfractuosity and fgimenezm for figuring out additional details for kernels
#

hyperupcall

// I'm tired of extensions that automatically:
// - show welcome pages / walkthroughs
// - show release notes
// - send telemetry
// - recommend things
//
// This disables all of that stuff.
// If you have more config, leave a comment so I can add it!!

{

m-radzikowski

#!/usr/bin/env bash

set -Eeuo pipefail
trap cleanup SIGINT SIGTERM ERR EXIT

script_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd -P)

usage() {
  cat <<EOF
Usage: $(basename "${BASH_SOURCE[0]}") [-h] [-v] [-f] -p param_value arg1 [arg2...]

zbraniecki

As Gecko is moving toward more Rust code, the cases where Rust and C code interoperate will become more common.

This document is an attempt to ease the learning curve for engineers facing it for the first time. It assumes no prior experience with cross-language C interfaces (called FFI).

It also assumes that Rust code is already built into Gecko. If you need help with that, read Introducing Rust code in Firefox.

What can you transfer across the fence

BookGin

# navigate to about:debugging#workers first
for (let k of document.getElementsByClassName("unregister-link")) k.click()
for (let k of document.getElementsByClassName("qa-unregister-button")) k.click()

luk6xff

You might want to read this to get an introduction to armel vs armhf.

If the below is too much, you can try Ubuntu-ARMv7-Qemu but note it contains non-free blobs.

Running ARM programs under linux (without starting QEMU VM!)

First, cross-compile user programs with GCC-ARM toolchain. Then install qemu-arm-static so that you can run ARM executables directly on linux

If there's no qemu-arm-static in the package list, install qemu-user-static instead

mbaitelman

Automated Terraform Deployments

Requirements

• AWS Account
• AWS API User API Key/Secret
• Bitbucket Account

Setup

1. Create or update an existing Bitbucket repo
2. Open https://bitbucket.org/USERNAME/REPO/addon/pipelines/deployments

bmatthewshea

#!/bin/bash
#  By B Shea  Dec2018 & Mar2020
#  https://www.holylinux.net

# Test for OpenSSL - if not installed stop here.
if ! [[ -x $(which openssl) ]]; then
  printf "\nOpenSSL not found or not executable.\nPlease install OpenSSL before proceeding.\n\n"
  exit 1
fi

smoser

PDFtk is a useful program for manipulating/creating pdf. It is not available in 18.04.

Creation of this followed Building Snaps From Archived Packages.

Build

snapcraft

Installation