Installation of CentOS 7.0 with screenshot

This tutorial will guide you on how to perform a minimal installation of latest version of CentOS 7.0, using the binary DVD ISO image or Bootable Pendrive , an installation that is best suitable for developing a future customization server platform, with no Graphical User Interface, where you can install only the software that you need.

CentOS 7.0 Installation Process

1. After downloading the last version of CentOS using above links or using official CentOS download page. Burn it to a DVD or create a bootable USB stick using LiveUSB Creator called Rufus.

2. After you have created the installer bootable media, place your DVD/USB into your system appropriate drive, start the computer, select your bootable unit and the first CentOS 7 prompt should appear. At the prompt choose Install CentOS 7 and press [Enter] key.

3. The system will start loading media installer and a Welcome screen should appear. Select your Installation Process Language, that will assist you through the entire installation procedure and click on Continue.

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4. The next step, present screen prompt is Installation Summary. It contains a lot of options to fully customize your system. First thing you may want to setup is your time settings. Click on Date & Time and select your server physical location from the provided map and hit on upper Done button to apply configuration.

will explain to setup each configuration below :-

  • Click on Date & Time and select your server physical location from the provided map and hit on upper Done button to apply configuration.
  • The same way choose your Keyboard Layout by hitting the plus button and test your keyboard configuration using the right input filed. After you finish setting up your keyboard, again hit on upper Done button to apply changes and go back to main screen on Installation Summary.
  • Choose your main and extra language support for your system and click on Done button.
  • On the next step you can customize your installation source by using other Installation Sources than your local DVD/USB media, such as a network locations using HTTP, HTTPS, FTP or NFS protocols, but use this methods only if you know what you’re doing. So leave the default Auto-detected installation media and hit on Done to continue.
  • On the next step you can choose your software selection(system installation software). On this step CentOS offers a lot of Server and Desktop platform environments that you choose from, but, i suggest you select Minimal Install with Compatibility Libraries as Add-ons, which will install a minimal basic system software and later you can add other packages as your needs require using yum groupinstall command.
  • Now it’s time to partition your hard-drive. Click on Installation Destination menu, select your disk and choose I will configure partitioning or choose automatic configure partitioning(will suggest if you are not aware to do a partitioning by yourself ).
    • Automatic partitioning create 3 system partition using XFS partitioning and gathering all into one big Volume Group named CENTOS .
         /boot – Non LVM

                       /(root) – LVM
                       Swap – LVM

    • If you are not pleased with the default partition layout done automatically by the installer you can completely add, modify or resize your partition scheme and when you finish hit on Done button and Accept Changes on the Summary of Changes prompt.
  • The next step is to set your system hostname and enable networking. Click on Network & Hostname label and type your system FQDN (Fully Qualified Domain Name) on Hostname filed, then enable your Network interface.

5. If your system will be destined as a server it’s better to set static network configuration on Ethernet NIC by clicking on Configure button and add all your static interface settings and when you’re finished hit on Save button, disable and enable Ethernet card by switching the button to OFF and ON, and, then hit on Done to apply setting and go back to main menu.

6. Now it’s time to start installation process by pressing on Begin Installation button and set up a strong password for root account.

7. After you finish setting up a strong password for root account move to User Creation and create your first system user. You can designate this user to become a System Admin with root privileges using sudo command by checking the box Make this user administrator, then click on Done to go back on main menu and wait for the installation process to finish.

8. After the installation process finishes, the installer will show a successfully message on screen, demanding to reboot your system in order to use it.

Congratulation! You have now installed last version of CentOS on your bare new machine. Remove any installation media and reboot your computer so you can login to your new minimal CentOS 7 environment and perform other system tasks, such as update your system and install other useful software needed to run day to day tasks.

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