WIP - Adding initial work to emulate locally

.gitignore

@@ -1 +1,10 @@
-.DS_Store
+.DS_Store
+raspberrypi/kernel-qemu
+raspberrypi/raspios_lite_armhf
+raspberrypi/raspios_lite_armhf.img
+raspberrypi/raspios_lite_armhf.qcow2
+raspberrypi/raspios_lite_armhf.img.xz
+raspberrypi/raspios_lite_armhf.xz
+raspberrypi/versatile-pb.dtb
+raspberrypi/kernel.img
+raspberrypi/bcm2708-rpi-zero-w.dtb

raspberrypi/Makefile

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+SHELL := /bin/bash
+
+# Variables
+IMAGE_URL = https://downloads.raspberrypi.org/raspios_lite_armhf_latest
+IMAGE_NAME = raspios_lite_armhf
+IMAGE_EXT = .img
+KERNEL_URL = https://github.com/raspberrypi/firmware/raw/master/boot/kernel.img
+KERNEL_NAME = kernel.img
+DTB_URL = https://github.com/raspberrypi/firmware/raw/master/boot/bcm2708-rpi-zero-w.dtb
+DTB_NAME = bcm2708-rpi-zero-w.dtb
+PLAYBOOK = playbook.yml
+
+.PHONY: all
+all: check-dependencies download-image extract-image resize-image download-kernel download-dtb boot-qemu run-playbook ## Run all steps
+
+.PHONY: check-dependencies
+check-dependencies: ## Check required dependencies
+	@command -v qemu-system-arm > /dev/null 2>&1 || { echo >&2 "QEMU is not installed. Aborting."; exit 1; }
+	@command -v xz > /dev/null 2>&1 || { echo >&2 "Xz is not installed. Aborting."; exit 1; }
+	@command -v wget > /dev/null 2>&1 || { echo >&2 "Wget is not installed. Aborting."; exit 1; }
+	@command -v ansible-playbook > /dev/null 2>&1 || { echo >&2 "Ansible-playbook is not installed. Aborting."; exit 1; }
+
+.PHONY: download-image
+download-image: ## Download Raspberry Pi OS image
+	@if [ ! -f $(IMAGE_NAME)$(IMAGE_EXT) ]; then \
+		echo "Downloading Raspberry Pi OS image..."; \
+		wget $(IMAGE_URL) -O $(IMAGE_NAME)$(IMAGE_EXT).xz; \
+	fi
+
+.PHONY: extract-image
+extract-image: ## Extract the downloaded image
+	@if [ ! -f $(IMAGE_NAME)$(IMAGE_EXT) ]; then \
+		echo "Extracting Raspberry Pi OS image..."; \
+		xz -v -d -k -f $(IMAGE_NAME)$(IMAGE_EXT).xz; \
+	fi
+
+.PHONY: resize-image
+resize-image: ## Resize the image
+	@echo "Resizing the Raspberry Pi OS image..."
+	@qemu-img resize -f raw $(IMAGE_NAME).img 4096M
+
+.PHONY: download-kernel
+download-kernel: ## Download a compatible kernel for QEMU
+	@if [ ! -f $(KERNEL_NAME) ]; then \
+		echo "Downloading Raspberry Pi OS kernel..."; \
+		wget $(KERNEL_URL) -O $(KERNEL_NAME); \
+	fi
+
+.PHONY: download-dtb
+download-dtb: ## Download the compatible Device Tree Blob (DTB)
+	@if [ ! -f $(DTB_NAME) ]; then \
+		echo "Downloading Raspberry Pi OS dtb..."; \
+		wget $(DTB_URL) -O $(DTB_NAME); \
+	fi
+
+.PHONY: mount-image
+mount-image: ## Mount the Raspberry Pi OS image
+	@echo "Mounting the Raspberry Pi OS image..."
+	@sudo mkdir -p /mnt/rpi
+	@sudo mount -o loop,offset=272629760 $(IMAGE_NAME).img /mnt/rpi
+
+.PHONY: unmount-image
+unmount-image: ## Unmount the Raspberry Pi OS image
+	@echo "Unmounting the Raspberry Pi OS image..."
+	@if mountpoint -q /mnt/rpi; then \
+		sudo umount /mnt/rpi; \
+	fi
+	@sudo rmdir /mnt/rpi
+
+
+.PHONY: copy-scripts
+copy-scripts: mount-image ## Copy the setup and optimization scripts to the image
+	@echo "Copying setup and optimization scripts to the image..."
+	@sudo cp setup.sh /mnt/rpi/root/
+	@sudo cp optimize_boot.sh /mnt/rpi/root/
+	@echo "Attempting to enable SSH"
+	@sudo touch /mnt/rpi/boot/ssh
+	@echo '#!/bin/bash' | sudo tee /mnt/rpi/etc/init.d/boot-start.sh
+	@echo 'date +%s > /boot/start.txt' | sudo tee -a /mnt/rpi/etc/init.d/boot-start.sh
+	@echo '#!/bin/bash' | sudo tee /mnt/rpi/etc/init.d/boot-end.sh
+	@echo 'date +%s > /boot/end.txt' | sudo tee -a /mnt/rpi/etc/init.d/boot-end.sh
+	@sudo chmod +x /mnt/rpi/etc/init.d/boot-start.sh
+	@sudo chmod +x /mnt/rpi/etc/init.d/boot-end.sh
+	@if [ ! -L /mnt/rpi/etc/rcS.d/S01boot-start.sh ]; then \
+		sudo ln -s ../init.d/boot-start.sh /mnt/rpi/etc/rcS.d/S01boot-start.sh; \
+	fi
+	@if [ ! -L /mnt/rpi/etc/rc6.d/S99boot-end.sh ]; then \
+		sudo ln -s ../init.d/boot-end.sh /mnt/rpi/etc/rc6.d/S99boot-end.sh; \
+	fi
+	@echo "Disabling Raspberry Pi OS setup wizard..."
+	@if [ -f /mnt/rpi/etc/xdg/autostart/piwiz.desktop ]; then \
+		sudo rm /mnt/rpi/etc/xdg/autostart/piwiz.desktop; \
+	fi
+	@make unmount-image
+
+
+.PHONY: boot-qemu
+boot-qemu: copy-scripts ## Boot the image in QEMU
+	@echo "Booting Raspberry Pi OS in QEMU..."
+	@qemu-system-arm -machine raspi0 -kernel $(KERNEL_NAME) -dtb $(DTB_NAME) -netdev user,id=net0,hostfwd=tcp::5022-:22 -device usb-net,netdev=net0 -no-reboot -append "earlycon=pl011,0x20201000 console=ttyAMA0,115200  dwc_otg.fiq_fsm_enable=0 dwc_otg.fiq_enable=0 dwc_otg.nak_holdoff=0 root=/dev/mmcblk0p2 initcall_blacklist=bcm2835_pm_driver_init arm_boost=1 rootwait" -drive "file=$(IMAGE_NAME).img,format=raw,index=0,media=disk"
+
+.PHONY: run-playbook
+run-playbook: ## Run the Ansible playbook
+	@echo "Running the Ansible playbook..."
+	@ansible-playbook $(PLAYBOOK)
+
+.PHONY: help
+help: ## Display this help
+	@awk 'BEGIN {FS = ":.*?## "} /^[a-zA-Z_-]+:.*?## / {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}' $(MAKEFILE_LIST)

raspberrypi/playbook.yml

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+- hosts: raspi
+  gather_facts: no
+  vars:
+    ansible_user: pi
+    ansible_password: raspberry
+    ansible_port: 5022
+    ansible_host: localhost
+    ansible_become: yes
+    ansible_become_method: sudo
+  tasks:
+    - name: Update and install raspberrypi-kernel
+      apt:
+        update_cache: yes
+        pkg:
+          - raspberrypi-kernel