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Version: 2.0 (Legacy)

Updating Package on a Pi

How to update OpenHD packages on Raspberry Pi systems.

Overview​

Package updates allow you to:

  • Install Latest Features: Get newest functionality
  • Apply Bug Fixes: Resolve known issues
  • Security Updates: Install security patches
  • Performance Improvements: Benefit from optimizations

Update Methods​

APT Package Updates​

The standard method using the package manager:

# Update package lists
sudo apt update

# Upgrade OpenHD packages
sudo apt upgrade openhd

# Full system upgrade
sudo apt full-upgrade

Manual Package Installation​

Install specific .deb packages:

# Download package
wget https://github.com/OpenHD/OpenHD/releases/download/v2.6.0/openhd_2.6.0_armhf.deb

# Install package
sudo dpkg -i openhd_2.6.0_armhf.deb

# Fix dependencies if needed
sudo apt-get install -f

Development Package Updates​

For development versions:

# Add development repository
echo "deb [trusted=yes] https://repo.openhd.app/dev /" | sudo tee /etc/apt/sources.list.d/openhd-dev.list

# Update and install
sudo apt update
sudo apt install openhd-dev

Pre-Update Preparation​

Backup Configuration​

# Backup OpenHD configuration
sudo cp -r /boot/openhd/ ~/openhd-config-backup/
sudo cp -r /etc/openhd/ ~/openhd-etc-backup/

# Backup custom settings
cp ~/.config/qopenhd.conf ~/qopenhd-backup.conf

Check System Status​

# Check available space
df -h

# Check running services
sudo systemctl status openhd

# Verify current version
openhd --version

Network Connectivity​

# Test internet connection
ping -c 3 github.com

# Check repository access
sudo apt update

Update Process​

Standard Update Procedure​

# 1. Stop OpenHD services
sudo systemctl stop openhd
sudo systemctl stop openhd-interface

# 2. Update package lists
sudo apt update

# 3. Check for OpenHD updates
apt list --upgradable | grep openhd

# 4. Perform update
sudo apt upgrade openhd

# 5. Restart services
sudo systemctl start openhd
sudo systemctl start openhd-interface

Selective Package Updates​

# Update only OpenHD core
sudo apt install --only-upgrade openhd

# Update QOpenHD
sudo apt install --only-upgrade qopenhd

# Update WFB-ng
sudo apt install --only-upgrade wfb-ng

Handling Update Issues​

Dependency Conflicts​

# Fix broken dependencies
sudo apt --fix-broken install

# Force package configuration
sudo dpkg --configure -a

# Clean package cache
sudo apt clean
sudo apt autoclean

Configuration Conflicts​

# Keep current configuration
# Choose 'N' when prompted about config file replacement

# View configuration differences
sudo dpkg --configure openhd
# Choose 'D' to see differences

# Manually merge configurations
sudo nano /etc/openhd/openhd.conf

Service Restart Issues​

# Check service status
sudo systemctl status openhd

# View service logs
sudo journalctl -u openhd -f

# Manual service restart
sudo systemctl restart openhd

# Reload systemd if needed
sudo systemctl daemon-reload

Post-Update Verification​

System Functionality​

# Verify OpenHD version
openhd --version

# Check service status
sudo systemctl status openhd
sudo systemctl status openhd-interface

# Test video pipeline
gst-launch-1.0 videotestsrc ! autovideosink

Configuration Validation​

# Validate configuration files
openhd --check-config

# Test telemetry connection
mavproxy.py --master=udp:127.0.0.1:14550

# Verify camera detection
v4l2-ctl --list-devices

Network Connectivity​

# Check WiFi interface
iwconfig

# Verify hotspot functionality
sudo systemctl status hostapd

# Test ground station connection
ping 192.168.1.10

Version-Specific Updates​

Major Version Updates​

For updates between major versions (e.g., 2.x to 3.x):

# Review breaking changes
curl -s https://api.github.com/repos/OpenHD/OpenHD/releases/latest | grep "body"

# Backup entire system
sudo dd if=/dev/mmcblk0 of=~/full-backup-$(date +%Y%m%d).img bs=4M

# Perform update with caution
sudo apt dist-upgrade

Beta/Development Updates​

# Add beta repository
echo "deb [trusted=yes] https://repo.openhd.app/beta /" | sudo tee /etc/apt/sources.list.d/openhd-beta.list

# Pin specific versions if needed
sudo apt-mark hold openhd-core

# Install beta version
sudo apt install openhd=2.6.0-beta.1

Rollback Procedures​

Package Rollback​

# List available versions
apt list -a openhd

# Downgrade to specific version
sudo apt install openhd=2.5.2

# Hold version to prevent automatic updates
sudo apt-mark hold openhd

Configuration Rollback​

# Restore configuration backup
sudo rm -rf /boot/openhd/
sudo cp -r ~/openhd-config-backup/ /boot/openhd/

# Restart services
sudo systemctl restart openhd

Full System Rollback​

# Restore from image backup
sudo dd if=~/full-backup-20240115.img of=/dev/mmcblk0 bs=4M

# Or restore from apt snapshot
sudo apt install aptitude
sudo aptitude versions openhd

Automation​

Automatic Updates​

# Enable unattended upgrades
sudo apt install unattended-upgrades

# Configure for OpenHD packages
sudo nano /etc/apt/apt.conf.d/50unattended-upgrades

Update Scripts​

#!/bin/bash
# openhd-update.sh

echo "Starting OpenHD update..."

# Stop services
sudo systemctl stop openhd

# Update packages
sudo apt update
sudo apt upgrade -y openhd

# Restart services
sudo systemctl start openhd

# Verify installation
if systemctl is-active --quiet openhd; then
    echo "Update successful!"
else
    echo "Update failed - check logs"
    sudo journalctl -u openhd --no-pager -l
fi

Monitoring Updates​

Package Status​

# Check package versions
dpkg -l | grep openhd

# View package information
apt show openhd

# Check for security updates
sudo unattended-upgrade --dry-run

System Health​

# Monitor system resources
htop

# Check disk usage
df -h

# Monitor temperature
vcgencmd measure_temp

# Check memory usage
free -h

Remote Updates​

SSH Updates​

# Connect via SSH
ssh [email protected]

# Run update remotely
sudo apt update && sudo apt upgrade -y openhd

# Reboot if needed
sudo reboot

Web Interface Updates​

  • Access OpenHD web interface
  • Navigate to System → Updates
  • Click "Check for Updates"
  • Follow on-screen instructions
Update Caution

Always backup your configuration before major updates. Test updates on a development system first when possible.

Scheduled Updates

Consider scheduling updates during maintenance windows to avoid disrupting active operations.

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