CentOS 7 Installation Step by Step with ScreenShot – Part 1

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CentOS 7

CentOS 7 has been released on July 07 2014, based on upstream EL7. This is the major release after the merger with Open Source Leader Redhat Inc. There are many changes in the recent release, compared to CentOS 6. For the first time, there is a supported upgrade from CentOS 6 to CentOS 7, upgraded path to CentOS 7 is possible from the latest version of CentOS 6 (Now CentOS 6.5). For more information on upgrade procedure, take a look here.

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CentOS 7 is now available for download, it can be either burned on DVD or USB sticks for the installation. Live media images is available for both Gnome and KDE environment, these images help you to test the CentOS 7 before installing it. Net install image can be used to install OS over a network.

The Everything image contains all the packages that are available for CentOS 7, including those packages that are not directly installable from the installer. To install the extra packages, you must mount the DVD ROM and install it manually by using the yum command.

Major Changes:

Due to the major release, most of the packages have been updated to latest version, below are the list of major changes in CentOS 7.

  • Kernel updated to 3.10
  • XFS as default file system
  • LVM snapshot with Ext4 and XFS
  • Supports Linux Containers
  • OpenJDK 7 as default
  • Switch to systemd, firewalld and GRUB2
  • Support for 40G Ethernet cards

More.

This guide will help you perform the CentOS 7 installation on your server.

Step 1: Boot the DVD, Select Install CentOS 7 from the boot menu.

CentOS 7 - Select Install CentOS 7
CentOS 7 – Select Install CentOS 7

Step 2: Select the language and continue.

CentOS 7 - Select Language
CentOS 7 – Select Language

Step 3: Next step is the installation summary, you must require to give an input to clear the warning messages. Other settings are optional. If you want to change the setting, you can click on it; corresponding page will open.

CentOS 7 - Installation Summary
CentOS 7 – Installation Summary

Step 3a: If you click on Date and Time, you will get the following page to change the Date and Time / Time zone. Click on done to save.

CentOS 7 Installation - Date and Time
CentOS 7 Installation – Date and Time

Step 3b: If you click on Software Installation, you will get the following page to change the type of installation. Click on done to save.

CentOS 7 Installation - Software Selection
CentOS 7 Installation – Software Selection

Step 3c: If you click on Network and Host name, you will get the following page to setup network and host name. Click on done to save.

CentOS 7 Installation - Network and HostName
CentOS 7 Installation – Network and HostName

Step 3d: If you click on Installation Destination, you will get the following page to setup disk partitions for the installation. Click on done to save.

CentOS 7 Installation - Partition Designing
CentOS 7 Installation – Partition Designing

Step 3e: If you have completed the above, you could see no warnings in Installation summary; click on Begin Installation.

CentOS 7 - Begin Installation
CentOS 7 – Begin Installation

Step 4: Once the installation begun, installer will start to install the packages; in the mean time you have to setup the following two things.

CentOS 7 Installation - Configuration
CentOS 7 Installation – Configuration

Step 4a: Set root password.

CentOS 7 Installation - Set root Password
CentOS 7 Installation – Set root Password

Step 4b: Create new user (This is optional, can be created later).

Once done, you will be asked to reboot the server.

CentOS 7 Installation - Reboot
CentOS 7 Installation – Reboot

Once rebooted, you will need to perform the post installation setup.

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  • wasabi

    Nice guide. However I can´t find a word regarding partitioning this sh*t. Can´t imagine that so. uses an enterprise Linux with automatic partitioning…..
    And manual partitoning CentOS 7 is REAL pain.
    Couldn´t get it to boot after only around 20 fresh installs 🙁
    (Oh, and BTW I have around 15 years experience in using Linux….)
    really disappointing…

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