How to Install Linux (Ubuntu) level0 – Complete Beginner to Advanced Guide

Why Install Linux (Ubuntu)?

Linux is the most widely used operating system among developers, system engineers, and cybersecurity professionals.
Ubuntu, in particular, is one of the most beginner-friendly Linux distributions while still being powerful enough for advanced users.

  • Free and Open Source – No licensing cost
  • Optimized for Development – Ideal for coding, servers, and hacking labs
  • Lightweight and Fast – Runs efficiently even on older hardware
  • Highly Secure – Strong permission system and fewer vulnerabilities

👉 If you want to learn CTF, ethical hacking, backend development, or server management, Linux is essential.

Installation Overview

  1. Download Ubuntu ISO file
  2. Create a bootable USB drive
  3. Configure BIOS/UEFI settings
  4. Run the installer
  5. Reboot and start using Linux

Step 1: Download Ubuntu

Download Ubuntu from the official website:

https://ubuntu.com/download/desktop

  • Recommended: LTS (Long Term Support) version
  • File type: .iso
  • File size: approximately 3–5GB

💡 Tip: LTS versions are more stable and receive updates for several years.

Step 2: Create Bootable USB

Use Rufus to create a bootable USB:

https://rufus.ie

  • Select your USB device
  • Select Ubuntu ISO file
  • Partition scheme: GPT (modern systems)
  • Click Start

This process converts your USB into a bootable installer.

Step 3: BIOS/UEFI Setup

  • Restart your PC
  • Enter BIOS/UEFI (F2 / F12 / DEL)
  • Go to Boot Menu
  • Set USB as first boot device

💡 Tip: This allows your computer to boot from the USB instead of the internal disk.

Step 4: Install Ubuntu

  • Select “Install Ubuntu”
  • Choose your language
  • Select keyboard layout
  • Choose installation type

Recommended: Erase disk and install Ubuntu (for beginners)

⚠️ Warning: This will delete all existing data.

Step 5: Finish Installation

  • Wait 10–20 minutes
  • Restart system
  • Remove USB
  • Log in

Post-Installation Setup

sudo apt update && sudo apt upgrade -y

This command:

  • Updates package lists
  • Upgrades installed software

💡 Essential step for security and stability.

Conclusion

Installing Ubuntu may look complicated, but it’s actually straightforward once you understand the process.

After installation, you can:

  • Build servers
  • Practice CTF challenges
  • Develop applications
  • Customize your system

👉 This is the first step toward becoming a real developer or ethical hacker.

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