mirror of
https://github.com/ChuckBuilds/LEDMatrix.git
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added first_time_install script
This commit is contained in:
Chuck
199
INSTALLATION_GUIDE.md
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199
INSTALLATION_GUIDE.md
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@@ -0,0 +1,199 @@
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# LED Matrix Installation Guide
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## Quick Start (Recommended for First-Time Installation)
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For a complete first-time installation, run:
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```bash
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sudo ./first_time_install.sh
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```
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This single script handles everything you need for a new installation.
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## Individual Scripts Explained
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### **First-Time Installation Scripts**
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#### `first_time_install.sh` ⭐ **RECOMMENDED**
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- **When to use**: New installations only
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- **What it does**: Complete setup including all steps below
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- **Usage**: `sudo ./first_time_install.sh`
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### **Service Installation Scripts**
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#### `install_service.sh`
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- **When to use**: Install main LED Matrix display service
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- **What it does**:
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- Creates systemd service for main display
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- Creates systemd service for web interface
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- Enables services to start on boot
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- **Usage**: `sudo ./install_service.sh`
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#### `install_web_service.sh`
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- **When to use**: Install only the web interface service (legacy)
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- **What it does**: Installs the web interface systemd service
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- **Usage**: `sudo ./install_web_service.sh`
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- **Note**: `install_service.sh` now handles this automatically
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### **Permission Fix Scripts**
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#### `fix_cache_permissions.sh`
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- **When to use**: When you see cache permission errors
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- **What it does**:
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- Creates cache directories (`/var/cache/ledmatrix`)
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- Sets proper permissions for cache access
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- Creates placeholder logo directories
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- **Usage**: `sudo ./fix_cache_permissions.sh`
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#### `fix_web_permissions.sh`
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- **When to use**: When web interface can't access logs or system commands
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- **What it does**:
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- Adds user to `systemd-journal` group (for log access)
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- Adds user to `adm` group (for system access)
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- Sets proper file ownership
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- **Usage**: `./fix_web_permissions.sh` (run as regular user)
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#### `configure_web_sudo.sh`
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- **When to use**: When web interface buttons don't work (sudo password errors)
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- **What it does**:
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- Configures passwordless sudo access for web interface
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- Allows web interface to start/stop services without password
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- **Usage**: `./configure_web_sudo.sh` (run as regular user)
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### **Dependency Installation Scripts**
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#### `install_dependencies_apt.py`
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- **When to use**: When you want to install packages via apt first, then pip
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- **What it does**:
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- Tries to install packages via apt (system packages)
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- Falls back to pip with `--break-system-packages`
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- Handles externally managed Python environments
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- **Usage**: `sudo python3 install_dependencies_apt.py`
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#### `start_web_v2.py`
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- **When to use**: Manual web interface startup
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- **What it does**:
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- Installs dependencies
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- Starts web interface directly
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- Includes comprehensive logging
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- **Usage**: `python3 start_web_v2.py`
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#### `run_web_v2.sh`
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- **When to use**: Manual web interface startup (shell script version)
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- **What it does**: Same as `start_web_v2.py` but as a shell script
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- **Usage**: `./run_web_v2.sh`
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### **Utility Scripts**
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#### `cleanup_venv.sh`
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- **When to use**: Remove virtual environment if you don't want to use it
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- **What it does**: Removes `venv_web_v2` directory
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- **Usage**: `./cleanup_venv.sh`
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#### `start_web_conditionally.py`
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- **When to use**: Called by systemd service (don't run manually)
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- **What it does**:
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- Checks config for `web_display_autostart` setting
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- Starts web interface only if enabled
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- Used by the systemd service
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## Installation Scenarios
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### **Scenario 1: Brand New Installation**
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```bash
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# One command does everything
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sudo ./first_time_install.sh
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```
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### **Scenario 2: Adding Web Interface to Existing Installation**
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```bash
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# Install web interface dependencies
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sudo python3 install_dependencies_apt.py
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# Fix permissions
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./fix_web_permissions.sh
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# Configure sudo access
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./configure_web_sudo.sh
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# Install services
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sudo ./install_service.sh
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```
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### **Scenario 3: Fixing Permission Issues**
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```bash
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# Fix cache permissions
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sudo ./fix_cache_permissions.sh
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# Fix web interface permissions
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./fix_web_permissions.sh
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# Configure sudo access
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./configure_web_sudo.sh
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# Log out and back in for group changes to take effect
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```
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### **Scenario 4: Manual Web Interface Startup**
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```bash
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# Start web interface manually (for testing)
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python3 start_web_v2.py
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```
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## Post-Installation Steps
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### **1. Log Out and Log Back In**
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After running permission scripts, you need to log out and back in for group changes to take effect:
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```bash
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# Or use this command to apply group changes immediately
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newgrp systemd-journal
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```
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### **2. Configure the Web Interface**
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Edit `config/config.json` and set:
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```json
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{
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"web_display_autostart": true
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}
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```
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### **3. Access the Web Interface**
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Open your browser and go to:
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```
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http://your-pi-ip:5001
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```
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### **4. Test Everything**
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- Check if services are running: `sudo systemctl status ledmatrix.service`
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- Check web interface: `sudo systemctl status ledmatrix-web.service`
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- View logs: `journalctl -u ledmatrix.service -f`
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## Troubleshooting
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### **Web Interface Not Accessible**
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1. Check if service is running: `sudo systemctl status ledmatrix-web.service`
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2. Check logs: `journalctl -u ledmatrix-web.service -f`
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3. Ensure `web_display_autostart` is `true` in config
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### **Permission Errors**
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1. Run: `./fix_web_permissions.sh`
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2. Run: `./configure_web_sudo.sh`
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3. Log out and back in
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### **Cache Permission Errors**
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1. Run: `sudo ./fix_cache_permissions.sh`
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### **Sudo Password Prompts**
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1. Run: `./configure_web_sudo.sh`
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2. Log out and back in
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### **Dependency Installation Errors**
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1. Run: `sudo python3 install_dependencies_apt.py`
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## Summary
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For **first-time installations**: Use `first_time_install.sh`
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For **existing installations with issues**: Use the individual permission and configuration scripts as needed.
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The `first_time_install.sh` script is designed to handle everything automatically, so you typically only need to run individual scripts if you're troubleshooting specific issues.
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@@ -246,6 +246,12 @@ sudo nano /boot/firmware/config.txt
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sudo reboot
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```
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9. Run the first_time_install.sh with
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```
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sudo ./first_time_install.sh
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```
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to ensure all the permissions are correct.
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-----------------------------------------------------------------------------------
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## Configuration
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@@ -807,7 +813,7 @@ This will start the display cycle but only stays active as long as your ssh sess
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The LEDMatrix can be installed as a systemd service to run automatically at boot and be managed easily. The service runs as root to ensure proper hardware timing access for the LED matrix.
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### Installing the Service
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### Installing the Service (this is included in the first_time_install.sh)
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1. Make the install script executable:
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```bash
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268
first_time_install.sh
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268
first_time_install.sh
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@@ -0,0 +1,268 @@
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#!/bin/bash
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# LED Matrix First-Time Installation Script
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# This script handles the complete setup for a new LED Matrix installation
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set -e
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echo "=========================================="
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echo "LED Matrix First-Time Installation Script"
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echo "=========================================="
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echo ""
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# Get the actual user who invoked sudo
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if [ -n "$SUDO_USER" ]; then
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ACTUAL_USER="$SUDO_USER"
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else
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ACTUAL_USER=$(whoami)
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fi
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# Get the home directory of the actual user
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USER_HOME=$(eval echo ~$ACTUAL_USER)
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# Determine the Project Root Directory (where this script is located)
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PROJECT_ROOT_DIR=$(cd "$(dirname "$0")" && pwd)
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echo "Detected user: $ACTUAL_USER"
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echo "User home directory: $USER_HOME"
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echo "Project directory: $PROJECT_ROOT_DIR"
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echo ""
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# Check if running as root
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if [ "$EUID" -eq 0 ]; then
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echo "✓ Running as root (required for installation)"
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else
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echo "✗ This script must be run as root (use sudo)"
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echo "Usage: sudo ./first_time_install.sh"
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exit 1
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fi
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echo ""
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echo "This script will perform the following steps:"
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echo "1. Install system dependencies"
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echo "2. Fix cache permissions"
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echo "3. Install main LED Matrix service"
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echo "4. Install web interface service"
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echo "5. Configure web interface permissions"
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echo "6. Configure passwordless sudo access"
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echo "7. Set up proper file ownership"
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echo "8. Test the installation"
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echo ""
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# Ask for confirmation
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read -p "Do you want to proceed with the installation? (y/N): " -n 1 -r
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echo
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if [[ ! $REPLY =~ ^[Yy]$ ]]; then
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echo "Installation cancelled."
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exit 0
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fi
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echo ""
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echo "Step 1: Installing system dependencies..."
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echo "----------------------------------------"
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# Update package list
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apt update
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# Install required system packages
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echo "Installing Python packages and dependencies..."
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apt install -y python3-pip python3-venv python3-dev python3-pil python3-pil.imagetk
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# Install additional system dependencies that might be needed
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echo "Installing additional system dependencies..."
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apt install -y git curl wget unzip
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echo "✓ System dependencies installed"
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echo ""
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echo "Step 2: Fixing cache permissions..."
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echo "----------------------------------"
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# Run the cache permissions fix
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if [ -f "$PROJECT_ROOT_DIR/fix_cache_permissions.sh" ]; then
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echo "Running cache permissions fix..."
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bash "$PROJECT_ROOT_DIR/fix_cache_permissions.sh"
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echo "✓ Cache permissions fixed"
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else
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echo "⚠ Cache permissions script not found, creating cache directories manually..."
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mkdir -p /var/cache/ledmatrix
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chown "$ACTUAL_USER:$ACTUAL_USER" /var/cache/ledmatrix
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chmod 777 /var/cache/ledmatrix
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echo "✓ Cache directories created manually"
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fi
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echo ""
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echo "Step 3: Installing main LED Matrix service..."
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echo "---------------------------------------------"
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# Run the main service installation
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if [ -f "$PROJECT_ROOT_DIR/install_service.sh" ]; then
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echo "Running main service installation..."
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bash "$PROJECT_ROOT_DIR/install_service.sh"
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echo "✓ Main LED Matrix service installed"
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else
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echo "✗ Main service installation script not found"
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exit 1
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fi
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echo ""
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echo "Step 4: Installing web interface dependencies..."
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echo "------------------------------------------------"
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# Install web interface dependencies
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echo "Installing Python dependencies for web interface..."
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cd "$PROJECT_ROOT_DIR"
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# Try to install dependencies using the smart installer if available
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if [ -f "$PROJECT_ROOT_DIR/install_dependencies_apt.py" ]; then
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echo "Using smart dependency installer..."
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python3 "$PROJECT_ROOT_DIR/install_dependencies_apt.py"
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else
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echo "Using pip to install dependencies..."
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python3 -m pip install --break-system-packages -r requirements_web_v2.txt
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# Install rgbmatrix module from local source
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echo "Installing rgbmatrix module..."
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python3 -m pip install --break-system-packages -e rpi-rgb-led-matrix-master/bindings/python
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fi
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echo "✓ Web interface dependencies installed"
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echo ""
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echo "Step 5: Configuring web interface permissions..."
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echo "------------------------------------------------"
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# Add user to required groups
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echo "Adding user to systemd-journal group..."
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usermod -a -G systemd-journal "$ACTUAL_USER"
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echo "Adding user to adm group..."
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usermod -a -G adm "$ACTUAL_USER"
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echo "✓ User added to required groups"
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echo ""
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echo "Step 6: Configuring passwordless sudo access..."
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echo "------------------------------------------------"
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# Create sudoers configuration for the web interface
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echo "Creating sudoers configuration..."
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SUDOERS_FILE="/etc/sudoers.d/ledmatrix_web"
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# Get command paths
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PYTHON_PATH=$(which python3)
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SYSTEMCTL_PATH=$(which systemctl)
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REBOOT_PATH=$(which reboot)
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POWEROFF_PATH=$(which poweroff)
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BASH_PATH=$(which bash)
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# Create sudoers content
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cat > /tmp/ledmatrix_web_sudoers << EOF
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# LED Matrix Web Interface passwordless sudo configuration
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# This allows the web interface user to run specific commands without a password
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# Allow $ACTUAL_USER to run specific commands without a password for the LED Matrix web interface
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$ACTUAL_USER ALL=(ALL) NOPASSWD: $REBOOT_PATH
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$ACTUAL_USER ALL=(ALL) NOPASSWD: $POWEROFF_PATH
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$ACTUAL_USER ALL=(ALL) NOPASSWD: $SYSTEMCTL_PATH start ledmatrix.service
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$ACTUAL_USER ALL=(ALL) NOPASSWD: $SYSTEMCTL_PATH stop ledmatrix.service
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$ACTUAL_USER ALL=(ALL) NOPASSWD: $SYSTEMCTL_PATH restart ledmatrix.service
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$ACTUAL_USER ALL=(ALL) NOPASSWD: $SYSTEMCTL_PATH enable ledmatrix.service
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$ACTUAL_USER ALL=(ALL) NOPASSWD: $SYSTEMCTL_PATH disable ledmatrix.service
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$ACTUAL_USER ALL=(ALL) NOPASSWD: $SYSTEMCTL_PATH status ledmatrix.service
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$ACTUAL_USER ALL=(ALL) NOPASSWD: $PYTHON_PATH $PROJECT_ROOT_DIR/display_controller.py
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$ACTUAL_USER ALL=(ALL) NOPASSWD: $BASH_PATH $PROJECT_ROOT_DIR/start_display.sh
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$ACTUAL_USER ALL=(ALL) NOPASSWD: $BASH_PATH $PROJECT_ROOT_DIR/stop_display.sh
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EOF
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# Install the sudoers file
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cp /tmp/ledmatrix_web_sudoers "$SUDOERS_FILE"
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chmod 440 "$SUDOERS_FILE"
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rm /tmp/ledmatrix_web_sudoers
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echo "✓ Passwordless sudo access configured"
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echo ""
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echo "Step 7: Setting proper file ownership..."
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echo "----------------------------------------"
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# Set ownership of project files to the user
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echo "Setting project file ownership..."
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chown -R "$ACTUAL_USER:$ACTUAL_USER" "$PROJECT_ROOT_DIR"
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# Set proper permissions for config files
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if [ -f "$PROJECT_ROOT_DIR/config/config.json" ]; then
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chmod 644 "$PROJECT_ROOT_DIR/config/config.json"
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echo "✓ Config file permissions set"
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fi
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echo "✓ File ownership configured"
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echo ""
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echo "Step 8: Testing the installation..."
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echo "----------------------------------"
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# Test sudo access
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echo "Testing sudo access..."
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if sudo -u "$ACTUAL_USER" sudo -n systemctl status ledmatrix.service > /dev/null 2>&1; then
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echo "✓ Sudo access test passed"
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else
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echo "⚠ Sudo access test failed - may need to log out and back in"
|
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fi
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# Test journal access
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echo "Testing journal access..."
|
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if sudo -u "$ACTUAL_USER" journalctl --no-pager --lines=1 > /dev/null 2>&1; then
|
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echo "✓ Journal access test passed"
|
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else
|
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echo "⚠ Journal access test failed - may need to log out and back in"
|
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fi
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# Check service status
|
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echo "Checking service status..."
|
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if systemctl is-active --quiet ledmatrix.service; then
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echo "✓ Main LED Matrix service is running"
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else
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echo "⚠ Main LED Matrix service is not running"
|
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fi
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if systemctl is-active --quiet ledmatrix-web.service; then
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echo "✓ Web interface service is running"
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else
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||||
echo "⚠ Web interface service is not running"
|
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fi
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||||
|
||||
echo ""
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||||
echo "=========================================="
|
||||
echo "Installation Complete!"
|
||||
echo "=========================================="
|
||||
echo ""
|
||||
echo "IMPORTANT: For group changes to take effect, you need to:"
|
||||
echo "1. Log out and log back in to your SSH session, OR"
|
||||
echo "2. Run: newgrp systemd-journal"
|
||||
echo ""
|
||||
echo "After logging back in, you can:"
|
||||
echo ""
|
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echo "Access the web interface at:"
|
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echo " http://your-pi-ip:5001"
|
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echo ""
|
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echo "Check service status:"
|
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echo " sudo systemctl status ledmatrix.service"
|
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echo " sudo systemctl status ledmatrix-web.service"
|
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echo ""
|
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echo "View logs:"
|
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echo " journalctl -u ledmatrix.service -f"
|
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echo " journalctl -u ledmatrix-web.service -f"
|
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echo ""
|
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echo "Control the display:"
|
||||
echo " sudo systemctl start ledmatrix.service"
|
||||
echo " sudo systemctl stop ledmatrix.service"
|
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echo ""
|
||||
echo "Enable/disable web interface autostart:"
|
||||
echo " Edit config/config.json and set 'web_display_autostart': true"
|
||||
echo ""
|
||||
echo "Configuration files:"
|
||||
echo " Main config: config/config.json"
|
||||
echo " Secrets: config/config_secrets.json (create from template if needed)"
|
||||
echo ""
|
||||
echo "Enjoy your LED Matrix display!"
|
||||
105
fix_web_permissions.sh
Normal file
105
fix_web_permissions.sh
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#!/bin/bash
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# LED Matrix Web Interface Permissions Fix Script
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# This script fixes permissions for the web interface to access logs and system commands
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set -e
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echo "Fixing LED Matrix Web Interface permissions..."
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# Get the current user (should be the user running the web interface)
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WEB_USER=$(whoami)
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PROJECT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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echo "Detected web interface user: $WEB_USER"
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echo "Project directory: $PROJECT_DIR"
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# Check if running as root
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if [ "$EUID" -eq 0 ]; then
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echo "Error: This script should not be run as root."
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echo "Run it as the user that will be running the web interface."
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exit 1
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fi
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echo ""
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echo "This script will:"
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echo "1. Add the web user to the 'systemd-journal' group for log access"
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echo "2. Add the web user to the 'adm' group for additional system access"
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echo "3. Configure sudoers for passwordless access to system commands"
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echo "4. Set proper file permissions"
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echo ""
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# Ask for confirmation
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read -p "Do you want to proceed? (y/N): " -n 1 -r
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echo
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if [[ ! $REPLY =~ ^[Yy]$ ]]; then
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echo "Permission fix cancelled."
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exit 0
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fi
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echo ""
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echo "Step 1: Adding user to systemd-journal group..."
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if sudo usermod -a -G systemd-journal "$WEB_USER"; then
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echo "✓ Added $WEB_USER to systemd-journal group"
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else
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echo "✗ Failed to add user to systemd-journal group"
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fi
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echo ""
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echo "Step 2: Adding user to adm group..."
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if sudo usermod -a -G adm "$WEB_USER"; then
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echo "✓ Added $WEB_USER to adm group"
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else
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echo "✗ Failed to add user to adm group"
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fi
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echo ""
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echo "Step 3: Setting proper file permissions..."
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# Set ownership of project files to the web user
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if sudo chown -R "$WEB_USER:$WEB_USER" "$PROJECT_DIR"; then
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echo "✓ Set project ownership to $WEB_USER"
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else
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echo "✗ Failed to set project ownership"
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fi
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# Set proper permissions for config files
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if sudo chmod 644 "$PROJECT_DIR/config/config.json" 2>/dev/null; then
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echo "✓ Set config file permissions"
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else
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echo "⚠ Config file permissions not set (file may not exist)"
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fi
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echo ""
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echo "Step 4: Testing journal access..."
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# Test if the user can now access journal logs
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if journalctl --user-unit=ledmatrix.service --no-pager --lines=1 > /dev/null 2>&1; then
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echo "✓ Journal access test passed"
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elif sudo -u "$WEB_USER" journalctl --no-pager --lines=1 > /dev/null 2>&1; then
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echo "✓ Journal access test passed (with sudo)"
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else
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echo "⚠ Journal access test failed - you may need to log out and back in"
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fi
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||||
echo ""
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echo "Step 5: Testing sudo access..."
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# Test sudo access for system commands
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||||
if sudo -n systemctl status ledmatrix.service > /dev/null 2>&1; then
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echo "✓ Sudo access test passed"
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else
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echo "⚠ Sudo access test failed - you may need to run configure_web_sudo.sh"
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||||
fi
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echo ""
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echo "Permission fix completed!"
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||||
echo ""
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||||
echo "IMPORTANT: For group changes to take effect, you need to:"
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||||
echo "1. Log out and log back in, OR"
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||||
echo "2. Run: newgrp systemd-journal"
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||||
echo "3. Restart the web interface service:"
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||||
echo " sudo systemctl restart ledmatrix-web.service"
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||||
echo ""
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||||
echo "After logging back in, test journal access with:"
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||||
echo " journalctl --no-pager --lines=5"
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||||
echo ""
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||||
echo "If you still have sudo issues, run:"
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||||
echo " ./configure_web_sudo.sh"
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||||
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