Manzolo PPA — My Personal Ubuntu Repository Install my tools directly with apt! Secure, GPG-signed repository hosted at https://ubuntu-repo.manzolo.it Ubuntu 24.04 (noble) — FULLY SUPPORTED wget -qO - https://ubuntu-repo.manzolo.it/KEY.gpg | sudo gpg --dearmor -o /etc/apt/trusted.gpg.d/manzolo-repo.gpg echo "deb [arch=amd64 signed-by=/etc/apt/trusted.gpg.d/manzolo-repo.gpg] https://ubuntu-repo.manzolo.it noble main" | sudo tee /etc/apt/sources.list.d/manzolo-repo.list sudo apt update Install my packages manzolo-chroot package sudo apt install manzolo-chroot Search all my tools apt search manzolo Verify everything works apt policy | grep manzolo Remove the repository (if you ever want to) sudo rm /etc/apt/sources.list.d/manzolo-repo.list sudo rm /etc/apt/trusted.gpg.d/manzolo-repo.gpg sudo apt update

Build Your Own Ubuntu Repository with Docker 📦 Ever wanted to distribute your own software packages just like Ubuntu does? Whether you’re managing internal tools across multiple servers, creating a private package distribution system, or just want to learn how APT repositories work under the hood, building your own Ubuntu repository is easier than you might think. In this guide, I’ll show you how to create a production-ready Ubuntu repository using Docker, complete with GPG signing, automated publishing, and a web interface for package distribution. ...

Installing NVIDIA Container Toolkit This guide explains how to install the NVIDIA Container Toolkit, which is essential for enabling GPU acceleration within Docker containers. This is particularly useful for applications that leverage NVIDIA GPUs for tasks like machine learning, scientific computing with GPU support. Prerequisites Before proceeding, ensure you have the following: NVIDIA GPU: A compatible NVIDIA graphics card. NVIDIA Drivers: The latest stable NVIDIA drivers installed for your operating system. You can usually download these from the NVIDIA website. Docker: Docker Engine installed and running on your system. Follow the official Docker installation guide for your specific OS. Installation Steps Follow these steps to install the NVIDIA Container Toolkit on a Debian/Ubuntu-based system. For other Linux distributions, please refer to the official NVIDIA Container Toolkit documentation. ...

Docker Playground Manager 🐳 Introducing Docker Playground Manager, a powerful tool for managing Docker development environments! Spin up containers for testing, learning, or experimenting with 100+ pre-configured images (Linux, Python, PostgreSQL, etc.) using an interactive terminal UI. What’s New? ✨ 📚 MOTD guides for MySQL, PostgreSQL, and more. 🎯 Category-based container selection. 📺 New dashboard and enhanced stats. Get Started 🚀 git clone https://github.com/manzolo/docker-compose-playground.git cd docker-compose-playground chmod +x playground.sh ./playground.sh Explore the full feature set on GitHub. Try it out, share feedback, or contribute to make it even better! ...

💊 Quick Pill: SD Card Backup and Restore ℹ️Info Use case: Backup Raspberry Pi SD cards, bootable USB drives, or any block device with compression. 🔄 Backup SD Card Create a compressed backup of your SD card: ...

GPG Bash Playground Guide Introduction The GPG Bash Playground is an educational Bash script that demonstrates the practical use of GPG (GNU Privacy Guard) for key generation, public key exchange, encryption, and decryption. The script simulates a secure communication scenario by creating three users (Alice, Bob, and Carol), generating their GPG keys, exchanging public keys, and performing encrypted message exchanges. It includes comprehensive logging, error handling, and a debug mode for detailed output. This guide explains how to set up, run, and understand the script’s functionality. ...

Linux Boot Repair Guide (Debian/Ubuntu) Introduction Boot issues in Debian or Ubuntu can prevent your system from starting, often due to a corrupted GRUB bootloader, misconfigured partitions, or kernel problems. This guide provides step-by-step instructions to repair the boot process for both UEFI and Legacy (BIOS/MBR) systems using a live USB/CD. It covers GRUB reinstallation, partition setup, and troubleshooting common issues. Prerequisites A Debian or Ubuntu live USB/CD (preferably the same version as your system). Access to a live session by booting from the live media and selecting “Try Ubuntu/Debian.” Basic familiarity with the terminal. Administrative (root) privileges in the live environment. Critical Warning: Verify Partitions Before Formatting ⚠️Warning Extreme Caution: Before formatting any partition, use lsblk or fdisk -l to verify that you are selecting the correct disk and partition (e.g., EFI System Partition or root partition). Formatting the wrong partition can erase your data or critical files. Always double-check the disk and partition layout to avoid data loss. Linux Boot Repair UEFI Boot Repair UEFI systems use an EFI System Partition (ESP) to store GRUB and boot files. If the ESP is missing, corrupted, or misconfigured, the system may fail to boot. ...

Windows Boot Repair Guide Introduction Windows boot issues can prevent your system from starting correctly, often due to corrupted boot files, misconfigured partitions, or firmware settings. This guide provides step-by-step instructions to repair Windows boot problems for both UEFI and MBR/Legacy systems using the Windows Recovery Environment (WinRE) command prompt. It covers partition setup, boot configuration rebuilding, and troubleshooting common issues. Prerequisites A Windows installation USB or DVD with the same version as your system. Access to the Windows Recovery Environment (WinRE) by booting from the installation media and selecting “Repair your computer.” Basic familiarity with the Command Prompt. Administrative privileges in the recovery environment. Critical Warning: Verify Partitions Before Formatting ⚠️Warning Extreme Caution: Before formatting any partition, use diskpart’s list disk and list part commands to verify that you are selecting the correct disk and partition (e.g., the EFI System Partition or system partition). Formatting the wrong partition can erase your Windows data or other critical files. Always double-check the disk and partition layout to ensure you are not deleting your data drive. Windows Boot Repair UEFI Boot Repair UEFI systems use an EFI System Partition (ESP) to store boot files. If the ESP is missing, corrupted, or misconfigured, Windows may fail to boot. ...

💊 Quick Pill: Windows System Repair ℹ️Info Use case: Fix corrupted Windows system files, repair Windows Update issues, resolve DLL errors, and restore system health. 🔧 Automated Repair Script Save this as windows_repair.bat and run as Administrator: ...

Chroot Guide for Debian/Ubuntu Introduction A chroot (change root) environment allows you to switch the root directory of a Linux session to a different filesystem, enabling you to work within a broken or inaccessible Debian/Ubuntu system as if it were the active system. This is particularly useful for repairing boot issues, recovering files, updating configurations, or resetting passwords. This guide provides step-by-step instructions to set up a chroot environment from a Debian/Ubuntu live USB/CD. ...