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How to Download and Install CentOS Linux: Step-by-
How to Download and Install CentOS Linux: Step-by-
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Guest
Guest
May 21, 2025
1:29 AM
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CentOS Linux has long been a popular choice among system administrators, developers, and IT professionals for its stability, enterprise-level features, and close compatibility with Red Hat Enterprise Linux (RHEL). Whether you are looking to deploy a production server or just want to explore a robust Linux distribution for learning and development, CentOS provides an excellent platform.
In this guide, we’ll walk you through the step-by-step process to download and install CentOS Linux in 2025. We’ll cover the different versions available, including CentOS 7, CentOS 8, and linux centos download as well as the various ways to obtain the CentOS Linux ISO download for your system.
Understanding CentOS Versions
Before diving into the installation steps, it's important to understand the different CentOS options available:
CentOS 7: The last traditional CentOS release with full updates through June 30, 2024, and maintenance updates until June 30, 2024. Although nearing end-of-life, some legacy systems still rely on CentOS 7.
CentOS 8: This version reached end-of-life at the end of 2021 and has been replaced by CentOS Stream. However, CentOS 8 ISO images are still available for download for archival or testing purposes.
CentOS Stream: A rolling-release distribution that sits between Fedora and RHEL, designed as a preview of the next RHEL minor release. CentOS Stream download is now the officially supported path for CentOS users looking forward.
Step 1: Choose the Right CentOS Version
Depending on your goals, you’ll want to pick the correct CentOS version:
CentOS 7 download: Ideal for legacy applications or specific compatibility requirements.
CentOS 8 ISO: For archival, testing, or migration experiments.
CentOS Stream download: Recommended for current and future development with Red Hat compatibility.
If you're starting fresh in 2025, we recommend going with CentOS Stream, as it receives continuous updates and improvements, making it more future-proof.
Step 2: Go to the Official CentOS Website
For a secure and reliable CentOS Linux ISO download, always use the official CentOS or related mirror websites.
Visit the CentOS Project website and click on the Get CentOS link in the menu. You’ll be redirected to the CentOS download section, where you can select from:
CentOS Stream
Archived CentOS 8
Archived CentOS 7
You may also explore direct mirror links or torrent files for a faster and more reliable download.
Step 3: Select the ISO File
Once you’re on the download page, choose the appropriate ISO image. There are typically three types:
DVD ISO: Full installation image with most packages included. Ideal for offline or network-limited environments.
Minimal ISO: A lightweight version with only the essential components. Best for custom installations.
Boot ISO: Requires a network connection to fetch packages during installation.
For most users, the DVD ISO is the best option as it includes everything needed for a full installation without relying on an internet connection.
Here are the direct options to look for:
CentOS 7 download DVD ISO
CentOS 8 ISO download (archived)
CentOS Stream ISO download (current)
Make sure to verify the file using the provided checksum (SHA256 or SHA512) to ensure a secure and complete download.
Step 4: Create Bootable Media
After downloading the ISO file, you'll need to create bootable media:
For USB:
Use tools like:
Rufus (Windows)
balenaEtcher (Cross-platform)
dd command (Linux/macOS advanced users)
Example for Linux users:
bash
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sudo dd if=CentOS-Stream-9-latest-x86_64-dvd1.iso of=/dev/sdX bs=4M status=progress
Replace /dev/sdX with your actual USB device path.
For DVD:
Burn the ISO to a DVD using software like Brasero, ImgBurn, or Nero.
Step 5: Boot and Start Installation
Insert the bootable USB/DVD into your target system and reboot. Ensure your BIOS/UEFI is set to boot from the installation media.
You’ll be greeted with the CentOS installation welcome screen. Select Install CentOS Linux, and proceed with the guided steps.
Step 6: Installation Process
1. Language Selection
Choose your preferred language and continue.
2. Installation Summary
You’ll be taken to a summary screen where you can configure the following:
Date & Time: Set your regional settings.
Keyboard: Choose input layout.
Installation Destination: Select the target disk.
Software Selection: Choose from minimal install, server with GUI, GNOME desktop, etc.
Network & Hostname: Enable networking and set your hostname.
3. Partitioning
You can let CentOS automatically partition your disk or manually define partitions if needed. For beginners, the automatic option is recommended.
4. Begin Installation
Click Begin Installation, and set the root password and (optional) create a new user during the process.
Installation may take a few minutes to complete depending on your hardware and software selection.
Step 7: Post-Installation Setup
After installation completes:
Reboot the system.
Remove the installation media when prompted.
Log in using the root account or the user you created during setup.
Once you log in, you may want to:
Run updates:
bash
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sudo dnf update -y
Install additional software:
bash
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sudo dnf install epel-release
Enable firewalls and security policies as needed for your setup.
Final Thoughts
Whether you're managing servers or creating a development environment linux centos download remains a powerful choice. Thanks to its close relationship with RHEL, it delivers a professional-grade Linux experience without licensing fees.
For those still working with legacy systems, the CentOS 7 download remains available. However, given that CentOS 7 reaches full end-of-life soon, migrating to CentOS Stream or alternative distributions like AlmaLinux or Rocky Linux is advisable.
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Anonymous
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May 21, 2025
2:26 AM
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