How to Upgrade from Debian 11 to Debian 12

• Receive the latest security patches and software updates
• Access new features and improvements
• Ensure system stability and compatibility
• Benefit from enhanced performance

1. Backup your data: Create a complete system backup
2. Update current packages:

   sudo apt update && sudo apt upgrade

3. Check disk space:

   df -h

4. Read release notes: Familiarize yourself with Debian 12 changes

Update APT sources to point to Debian 12 repositories:

sudo sed -i 's/bullseye/bookworm/g' /etc/apt/sources.list

1. Update package list:

   sudo apt update

2. Upgrade installed packages:

   sudo apt upgrade

3. Perform full distribution upgrade:

   sudo apt full-upgrade

1. Reboot the system:

   sudo reboot

2. Verify the upgrade:

   cat /etc/debian_version

3. Check for broken packages:

   sudo apt --fix-broken install

4. Clean up:

   sudo apt autoremove
   sudo apt clean

• Fixes known vulnerabilities
• Improves system performance
• Ensures compatibility with new software and hardware
• Reduces security incidents and maintenance costs
• Helps maintain compliance with industry standards

Key Features:

• Automated patching
• Centralized management
• Comprehensive reporting
• Customizable policies