Installation of CentOS (original) (raw)

Last Updated : 19 Nov, 2025

The installation of CentOS is divided into three main parts below are the steps:

1. ISO Download

Before we begin the installation process, we need to download the ISO file for CentOS. For that, all the versions of CentOS are available on the official site centos.org.

**Step 1: Go to the CentOS website and go to the downloads tab.

Going to CentOS website

**Step 2: Click on the correct ISO file for your system architecture (most likely x86_64 for modern systems).

Selecting Architecture

**Step 3: Choose a mirror to download the ISO from (preferably from mirrors in your region for better download speeds).

Selecting Mirror Image

**Step 4: Download the version that says DVD-2009.iso

Download DVD-2009

2. Preparing a bootable USB

**Step 1: Now, Connect the USB flash drive to your system.

**Step 2: Use a tool like an etcher or UNetbootin, etc to flash the drive.

Flashing the drive

**Note: To enter the BIOS a special hotkey is required, this key can differ from manufacturer to manufacturer and model to model. For example, the hp laptop uses F10 and ESC keys as its primary hotkeys for the step.

3. Final setup

**Step 1: Click on the option "**Install CentOS 7" and wait till Graphical Interface appears.

Graphical Interface Installation

**Step 2: Choose your installation language. Here, we have chosen English.

Selecting Installation Language

**Step 3: Configure options such as date and time, network configuration, etc.

Installation Summary

**Step 4: Choose the software to be installed depending on the use case and familiarity with the desktop.

Software Selection

**Step 5: Choose the disk where the distribution should be installed.

Disk Configuration

**Step 6: Our Installation process has been started successfully.

Installation Process

**Step 7: Now, set up a root password and user account in the meanwhile.

Setting root password

**Step 8: After installation is completed successfully, reboot and accept the license agreement.

Accepting Agreement

**Step 9: Now, log in to the system using the credentials created in **Step 6.

Log in to system

**Step 10: Complete the initial setup and the system is ready for use.

Initial Setup

**Step 11: We have successfully completed the installation process of CentOS.

Installation Completed