hdmistat/scripts/qemu-rpi-test.sh
2025-07-24 14:32:50 +02:00

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#!/bin/bash
set -euo pipefail
# Script to run Raspberry Pi OS in QEMU with hdmistat installation
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_DIR="$(dirname "$SCRIPT_DIR")"
WORK_DIR="${PROJECT_DIR}/qemu-test"
CLOUD_INIT_DIR="${WORK_DIR}/cloud-init"
# QEMU and image settings
QEMU_ARCH="aarch64"
RPI_IMAGE_URL="https://downloads.raspberrypi.org/raspios_lite_arm64/images/raspios_lite_arm64-2024-03-15/2024-03-15-raspios-bookworm-arm64-lite.img.xz"
RPI_IMAGE_NAME="raspios-lite-arm64.img"
QEMU_MEM="2G"
QEMU_CPUS="4"
VNC_PORT="5901"
# Colors for output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[0;33m'
NC='\033[0m' # No Color
log() {
echo -e "${GREEN}[$(date +'%Y-%m-%d %H:%M:%S')]${NC} $*"
}
error() {
echo -e "${RED}[ERROR]${NC} $*" >&2
exit 1
}
warn() {
echo -e "${YELLOW}[WARN]${NC} $*"
}
# Check dependencies
check_dependencies() {
log "Checking dependencies..."
local deps=("qemu-system-aarch64" "cloud-localds" "xz" "wget")
local missing=()
for dep in "${deps[@]}"; do
if ! command -v "$dep" &> /dev/null; then
missing+=("$dep")
fi
done
if [ ${#missing[@]} -ne 0 ]; then
error "Missing dependencies: ${missing[*]}"
fi
log "All dependencies found"
}
# Create work directory
setup_directories() {
log "Setting up directories..."
mkdir -p "$WORK_DIR"
mkdir -p "$CLOUD_INIT_DIR"
}
# Download Raspberry Pi OS image
download_image() {
if [ -f "${WORK_DIR}/${RPI_IMAGE_NAME}" ]; then
log "Raspberry Pi OS image already exists"
return
fi
log "Downloading Raspberry Pi OS image..."
cd "$WORK_DIR"
if [ ! -f "${RPI_IMAGE_NAME}.xz" ]; then
wget -O "${RPI_IMAGE_NAME}.xz" "$RPI_IMAGE_URL" || error "Failed to download image"
fi
log "Extracting image..."
xz -d -k "${RPI_IMAGE_NAME}.xz" || error "Failed to extract image"
# Resize image to have more space
log "Resizing image to 8GB..."
qemu-img resize "${RPI_IMAGE_NAME}" 8G
}
# Create cloud-init configuration
create_cloud_init() {
log "Creating cloud-init configuration..."
# Create meta-data
cat > "${CLOUD_INIT_DIR}/meta-data" << 'EOF'
instance-id: hdmistat-test-01
local-hostname: hdmistat-test
EOF
# Create user-data with hdmistat installation
cat > "${CLOUD_INIT_DIR}/user-data" << 'EOF'
#cloud-config
hostname: hdmistat-test
manage_etc_hosts: true
users:
- name: pi
groups: [adm, audio, cdrom, dialout, dip, floppy, lxd, netdev, plugdev, sudo, video]
sudo: ALL=(ALL) NOPASSWD:ALL
shell: /bin/bash
lock_passwd: false
passwd: $6$rounds=4096$8VNRmFT9yR$7TVlOepTJjMW0CzBkpMrdWA7aH4rZ94pZng8XjqaY8d8qqBmFvO/hYL5L2gqJ5nKLhDR8Jz9Z9nqfHBl5kVZHe1
ssh_authorized_keys:
- ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDf0q4PyG0doiBQYV7OlOxbRjle026hJPBWbZe test@hdmistat
packages:
- git
- golang
- build-essential
- systemd
- htop
- tmux
# Enable SSH
ssh_pwauth: true
# Update system
package_update: true
package_upgrade: true
# Install Go 1.24.4
write_files:
- path: /tmp/install-go.sh
permissions: '0755'
content: |
#!/bin/bash
set -e
GO_VERSION="1.24.4"
wget -q -O /tmp/go.tar.gz "https://go.dev/dl/go${GO_VERSION}.linux-arm64.tar.gz"
sudo rm -rf /usr/local/go
sudo tar -C /usr/local -xzf /tmp/go.tar.gz
echo 'export PATH=$PATH:/usr/local/go/bin' | sudo tee -a /etc/profile
echo 'export GOPATH=$HOME/go' | sudo tee -a /etc/profile
echo 'export PATH=$PATH:$GOPATH/bin' | sudo tee -a /etc/profile
- path: /tmp/build-hdmistat.sh
permissions: '0755'
content: |
#!/bin/bash
set -e
export PATH=$PATH:/usr/local/go/bin
export GOPATH=/home/pi/go
export PATH=$PATH:$GOPATH/bin
# Clone and build hdmistat from local source
mkdir -p /home/pi/hdmistat-src
cd /home/pi/hdmistat-src
# Note: In real usage, you'd clone from git repo
# For testing, we'll mount the source directory
# Build hdmistat
if [ -d "/mnt/hdmistat" ]; then
cd /mnt/hdmistat
make build
sudo cp hdmistat /usr/local/bin/
else
# Fallback: try to install from git
go install git.eeqj.de/sneak/hdmistat/cmd/hdmistat@latest
sudo cp $GOPATH/bin/hdmistat /usr/local/bin/
fi
# Install as systemd service
sudo /usr/local/bin/hdmistat install
# Enable framebuffer console
sudo sed -i 's/console=serial0,115200 //' /boot/cmdline.txt
echo "hdmi_force_hotplug=1" | sudo tee -a /boot/config.txt
echo "hdmi_group=2" | sudo tee -a /boot/config.txt
echo "hdmi_mode=82" | sudo tee -a /boot/config.txt
echo "framebuffer_width=1920" | sudo tee -a /boot/config.txt
echo "framebuffer_height=1080" | sudo tee -a /boot/config.txt
# Run installation scripts
runcmd:
- /tmp/install-go.sh
- sleep 5
- /tmp/build-hdmistat.sh
- sudo systemctl daemon-reload
- sudo systemctl enable hdmistat
- sudo systemctl start hdmistat
# Final message
final_message: "hdmistat installation complete! System ready for testing."
EOF
# Create cloud-init ISO
log "Creating cloud-init ISO..."
cd "$WORK_DIR"
cloud-localds cloud-init.iso "${CLOUD_INIT_DIR}/user-data" "${CLOUD_INIT_DIR}/meta-data"
}
# Create QEMU run script
create_run_script() {
log "Creating QEMU run script..."
cat > "${WORK_DIR}/run-qemu.sh" << EOF
#!/bin/bash
# Run QEMU with Raspberry Pi emulation
cd "$WORK_DIR"
echo "Starting QEMU Raspberry Pi emulation..."
echo "VNC server will be available on port $VNC_PORT"
echo "SSH: ssh pi@localhost -p 2222 (password: raspberry)"
echo "Framebuffer: The emulated display supports framebuffer at /dev/fb0"
echo ""
echo "Press Ctrl+A, X to quit QEMU"
qemu-system-aarch64 \\
-M raspi3b \\
-cpu cortex-a72 \\
-smp $QEMU_CPUS \\
-m $QEMU_MEM \\
-kernel kernel8.img \\
-dtb bcm2710-rpi-3-b-plus.dtb \\
-append "rw earlyprintk loglevel=8 console=ttyAMA0,115200 dwc_otg.lpm_enable=0 root=/dev/mmcblk0p2 rootdelay=1" \\
-drive file=${RPI_IMAGE_NAME},format=raw,if=sd \\
-drive file=cloud-init.iso,format=raw,if=none,id=cloud-init \\
-device usb-storage,drive=cloud-init \\
-netdev user,id=net0,hostfwd=tcp::2222-:22 \\
-device usb-net,netdev=net0 \\
-vnc :1 \\
-serial stdio \\
-display none \\
-virtfs local,path="${PROJECT_DIR}",mount_tag=hdmistat,security_model=passthrough,id=hdmistat \\
\${@}
EOF
chmod +x "${WORK_DIR}/run-qemu.sh"
}
# Download kernel and DTB files
download_kernel() {
log "Downloading kernel and DTB files..."
cd "$WORK_DIR"
# These are required for booting Raspberry Pi OS in QEMU
if [ ! -f "kernel8.img" ]; then
wget -q https://github.com/dhruvvyas90/qemu-rpi-kernel/raw/master/kernel8.img || \
error "Failed to download kernel"
fi
if [ ! -f "bcm2710-rpi-3-b-plus.dtb" ]; then
wget -q https://github.com/dhruvvyas90/qemu-rpi-kernel/raw/master/bcm2710-rpi-3-b-plus.dtb || \
error "Failed to download DTB"
fi
}
# Create helper scripts
create_helpers() {
log "Creating helper scripts..."
# VNC viewer script
cat > "${WORK_DIR}/view-vnc.sh" << EOF
#!/bin/bash
echo "Opening VNC viewer on localhost:$VNC_PORT"
vncviewer localhost:$VNC_PORT || echo "VNC viewer not found. Connect manually to localhost:$VNC_PORT"
EOF
chmod +x "${WORK_DIR}/view-vnc.sh"
# SSH script
cat > "${WORK_DIR}/ssh-pi.sh" << EOF
#!/bin/bash
echo "Connecting to Raspberry Pi via SSH..."
echo "Default password is: raspberry"
ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null pi@localhost -p 2222
EOF
chmod +x "${WORK_DIR}/ssh-pi.sh"
# Mount script for 9p filesystem
cat > "${WORK_DIR}/mount-hdmistat.sh" << EOF
#!/bin/bash
# Run this inside the VM to mount the hdmistat source
echo "Run this inside the Raspberry Pi VM:"
echo "sudo mkdir -p /mnt/hdmistat"
echo "sudo mount -t 9p -o trans=virtio hdmistat /mnt/hdmistat -oversion=9p2000.L"
EOF
chmod +x "${WORK_DIR}/mount-hdmistat.sh"
}
# Print usage instructions
print_instructions() {
log "Setup complete!"
echo ""
echo "========================================="
echo "QEMU Raspberry Pi Test Environment Ready"
echo "========================================="
echo ""
echo "To start the emulated Raspberry Pi:"
echo " cd $WORK_DIR"
echo " ./run-qemu.sh"
echo ""
echo "To view the display (framebuffer):"
echo " ./view-vnc.sh"
echo ""
echo "To SSH into the system:"
echo " ./ssh-pi.sh"
echo ""
echo "To mount hdmistat source inside VM:"
echo " 1. SSH into the VM"
echo " 2. Run: sudo mount -t 9p -o trans=virtio hdmistat /mnt/hdmistat -oversion=9p2000.L"
echo ""
echo "Default credentials:"
echo " Username: pi"
echo " Password: raspberry"
echo ""
echo "The framebuffer device will be available at /dev/fb0"
echo "hdmistat will be installed automatically via cloud-init on first boot"
echo ""
}
# Main execution
main() {
log "Starting QEMU Raspberry Pi setup for hdmistat testing..."
check_dependencies
setup_directories
download_image
download_kernel
create_cloud_init
create_run_script
create_helpers
print_instructions
log "Setup completed successfully!"
}
# Run main function
main "$@"