Script that handles everything (including downloads) to emulate a Raspberry Pi on your Linux machine

raspberry_pi_emulate.sh

#/bin/sh

# Copyright 2021 Marijn van Wezel
# 
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

image_zip_url='https://downloads.raspberrypi.org/raspios_full_armhf/images/raspios_full_armhf-2021-03-25/2021-03-04-raspios-buster-armhf-full.zip'
dtb_url='https://github.com/dhruvvyas90/qemu-rpi-kernel/blob/10774708f17f5fbe528ab161978b0c19afebdb23/versatile-pb-buster-5.4.51.dtb?raw=true'
kernel_url='https://github.com/dhruvvyas90/qemu-rpi-kernel/blob/10774708f17f5fbe528ab161978b0c19afebdb23/kernel-qemu-5.4.51-buster?raw=true'

image=2021-03-04-raspios-buster-armhf-full.img
dtb=versatile-pb-buster-5.4.51.dtb
kernel=kernel-qemu-5.4.51-buster

wget -nc $image_zip_url -O $image.zip
wget -nc $dtb_url -O $dtb
wget -nc $kernel_url -O $kernel

unzip -n $image.zip

# https://raspberrypi.stackexchange.com/a/120765
qemu-system-arm \
  -M versatilepb \
  -cpu arm1176 \
  -m 256 \
  -drive "file=$image,if=none,index=0,media=disk,format=raw,id=disk0" \
  -device "virtio-blk-pci,drive=disk0,disable-modern=on,disable-legacy=off" \
  -net "user,hostfwd=tcp::5022-:22" \
  -dtb $dtb \
  -kernel $kernel \
  -append 'root=/dev/vda2 panic=1' \
  -no-reboot