Wednesday, October 13
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CentOS 8 installation with screenshots

CentOS 8 has been released on 24 September 2019. It is a community version of Red Hat Enterprise Linux 8 (RHEL 8). Installing CentOS 8 is same as installing 7.x with slight changes on installer UI. Let’s begin with the process.

Step 1: Download CentOS 8 DVD ISO

Step 2: Create bootable installation media using Ultra ISO

  • Download and install the latest version of Ultra ISO
  • Insert a USB drive.
  • Open Ultra ISO on your system and go to File –> Open
  • A dialog box will open, redirect to the location where you have kept the CentOS 8 ISO image file.
  • Now go to Bootable –> Write Disk Image
  • A dialog box will appear on the screen, click on ‘Write‘.
  • Warning dialog box will appear and asking for permission to format the inserted USB drive. Click on ‘Yes‘.
  • Once the write task is complete, you will get a prompt mentioning ‘Burn successful’.
  • Your bootable device is ready.

Step 3: Begin with the installation

  • Reboot your system and change the BIOS setting to boot from installation media.
  • On the boot screen, select first option ‘Install CentOS Linux 8‘.
  • Select your language preference on the Welcome screen and click on ‘Continue‘.
  • You will get all the options on the ‘Installation Summary‘ page.
  • Use ‘Keyboard‘ option to configure the keyboard. By default, the keyboard layout is English (US). To add a new keyboard layout, click the ‘+’ button from bottom left of the screen. Click ‘Done‘ to return to the main menu.
  • Use ‘Language Support‘ option to configure the preferred language and click on ‘Done‘ to return main menu.
  • Use ‘Time & Date‘ option to configure this section according to your time zone and click on ‘Done‘.
  • Click on ‘Root Password‘ option to enter the password for super user. Click on ‘Done‘ to return to main menu.
  • Use ‘Create User‘ option from installation summary page to create a user before installing the CentOS 8. There is a radio button using which you can make the user as ‘Administrator‘. Click on ‘Done‘ to return to main menu.
  • Use the ‘Software Selection‘ option to select your base environment and add-ons for selected environment. Click on ‘Done‘ to return to main menu.
  • On the main menu, select ‘Installation Destination‘ to install the operating system on the hard drive. By default ‘Storage Configuration‘ is select as ‘Automatic‘. It will create a default partition on the system. This option is best for the beginners.
  • You can use ‘Custom‘ option to create the partitions manually. To make things easy and simple in the custom partition, you can click on ‘Click here to create them automatically‘.
  • On the basis of your hard drive, it will create the partitions for you. By default, you will be getting three partitions : /, /boot, swap.
  • A dialog box will appear for ‘Summary Of Changes‘. If everything looks good as per your requirement, click on ‘Accept Changes‘ else click on ‘Cancel & Return to Custom Partitioning‘.
  • Select ‘Kdump‘ option from main menu. It is a utility that dumps system crash information for analysis and further troubleshooting. The default settings are fine for any user so you can simply click on ‘Done‘.
  • From ‘Netwrok & Hostname‘ section, you can enter your hostname.
  • Once all the configuration is done, click on the ‘Begin Installation’ from right bottom on the screen.
  • It will show you the installation progress.
  • If everything goes well, you will get a message for a successful installation. Click on ‘Reboot‘ and boot into your new system.
  • You will need to accept the license agreement and finally click on ‘Finish Configuration‘.

Hurray! you have successfully installed the CentOS 8 on your system. It’ time to explore it.

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