How to Install RHEL 8 (Explained With Pictures)


RHEL 8

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Red Hat Enterprise Linux 8 released on May 7, 2019. RHEL 8 is based on Fedora 28 and is packed with Linux kernel version 4.8.

Red Hat introduced “Application Streams”, which allows developer tools, frameworks and languages to be updated frequently without impacting the core resources of the operating system.

RHEL yum package manager is now based on DNF technology and it also has OpenSSL 1.1.1 & TLS 1.3 support.

You can read more about RHEL 8 on Red Hat’s official website.

Minimum System Requirements for RHEL 8

  • 4 GB RAM
  • 20 GB Disk space
  • AMD/INTEL 64bit or 64bit ARM.

Pre-requisites:

  • An Active RedHat Subscription.  
  • RHEL 8 Bootable ISO file.
  • Bootable media creation tool. (Rufus or “dd” command)
  • An empty Pen-drive.
  • A compatible system for RHEL 8. (Check the minimum system requirements mentioned above.)

RHEL 8 Installation

Download

Download RHEL 8 ISO File from official link.

https://access.redhat.com/downloads/

Please Note: You need an Active RedHat subscription to download or login to RedHat and download the evaluation copy.

Create a bootable installation media.

Using Rufus (Windows):

1.) Download and install Rufus (If you don’t want to install you can also download the portable Version of Rufus)

2.) Start Rufus and Select the pen-drive and rhel8.iso file.

3.) Click on Start.

4.) Click Yes for the download pop-up.

5.) As recommended by Rufus, write iso in image mode. If you encounter issues during boot, then write iso in dd mode.

6.) Read the warning and click Ok.

7.) Now, wait for the bootable process to complete.

Using dd (Linux):

1.) Insert your pen-drive and find the drive using the command

sudo fdisk -l

In my case its “/dev/sdc

2.) Unmount the drive

sudo umount /dev/sdc*

3.) Format the Drive

sudo mkfs.vfat -I /dev/sdc

4.) Now, time to write the .iso file to the pen-drive.

sudo dd if=/home/phoenix/Desktop/rhel-8.0-x86_64-dvd.iso of=/dev/sdc

if = input file.
/home/phoenix/Desktop/rhel-8.0-x86_64-dvd.iso = location and name of the .iso file to write. (Change this according to your name and location)
of = output file.
/dev/sdc = name of my pen-drive given by Linux. (Change it according to your device name)

5.) Now, dd command by default doesn’t show the progress, but there is a trick.
First, find the process id of dd command using

sudo pgrep -l '^dd$'


Now, whenever you need to see the progress of dd command use

sudo kill -USR1 20683

Replace 20683 with the output of your pgrep command.

Please Note: DD command create partitions while writing .iso file. So use sudo mkfs.vfat -I /dev/sdc after you’ve installed rhel8 and you want to use your pen-drive for storing data.

Install RHEL 8

Now, boot the RHEL 8 using bootable media we created.

Choose “Install Red Hat Enterprise Linux 8.0.0” and hit Enter key.

Choose your preferred language and click continue.

Now, let’s customize the important options.

Click on “Time and Date” and select your preferred time zone then click on Done.

Click on Software selection tab and choose the packages which you want to install (I am leaving it as default)

Head on to the “Network and Hostname” tab and turn on the Ethernet. If it’s connected to the DHCP server, it will automatically get the IP.
Enter the Hostname and click apply.

Click on Done.

Click on “Installation Destination” tab.
Select custom under storage configuration and click Done.

Now, let’s create some partitions. (I have 64 GB space available)

/” Partition

Create / partition, and give it at least 70% of your available space, this is where everything will be stored including OS files and personal files. (I am giving it 40 GB)

Click on the “+” icon and Add a new mount point.
Mount point :  /
desired capacity :  40G
Click on Add mount Point.

“/boot” Partition

Now, Create a boot partition. (500 Mb is enough, if you have more space available then give it 1 GB)

Click on the “+” icon and Add a new mount point.
Mount point :  /boot
desired capacity :  500M
Click on Add mount Point.

“Swap” Partition

Swap partition: Some part of your hard disk will work as RAM whenever your RAM is used up completely. So let’s create the swap partition.

Minimum recommended swap = Half of your actual RAM.
Maximum recommended swap = Double of your actual RAM.

(I have 8 GB RAM so I am using 4 GB for swap partition.)

Click on the “+” icon and Add a new mount point.
Mount point :  swap
desired capacity :  4G
Click on Add mount Point.

Click on Done and Click on Accept Changes.

Now, click on Begin Installation.

Set the root password.

Create a user.

Wait for the installation to complete then click on reboot.

Once rebooted, agree to the licence.

Click on finish configuration.

Login to the account and complete the on-screen instructions.

We’ve successfully installed RHEL 8. Please share your valuable feedback and comments on this post.

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Rahul R Nair

Rahul is obsessed with technology and programming. He is also the founder of TechSphinx. Being a technophile, he is always busy doing some techy stuff or learning about the latest technologies. When not busy with his usual routine (staring at the computer screen) he likes to write and share his knowledge with the world.
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