Red Hat Enterprise Linux (RHEL) 8 Installation Step by Step
RHEL 8 is released on 7th May 2019. RHEL 8 is based on Linux kernel version 4.18 and Fedora 28 distribution. RHEL 8 has introduced “Application Streams”. It allows developers tools, frameworks and languages to be updated without impacting the core resources of base OS. Application streams will help to separate the users space packages from OS Kernel Space.
There are many new features in RHEL 8 which are as follows:
- XFS File system supports copy-on-write of file extents
- Introduction of Stratis filesystem, Buildah, Podman, and Skopeo
- Yum utility is based on DNF
- Chrony replace NTP.
- Cockpit which is the default Web Console tool for Server management.
- OpenSSL 1.1.1 & TLS 1.3 support
- PHP 7.2
- iptables replaced by nftables
Minimum System Requirements for RHEL 8:
- Processor = 64-bit x86 or ARM System
- RHEL 8 supports the following architectures:
- AMD or Intel x86 64-bit
- 64-bit ARM
- IBM Power Systems, Little Endian & IBM Z
- Memory = 4 GB RAM
- hard disk space = 20 GB unallocated
Here is the procedure to install RHEL 8 step by step with screenshots.
Installation Steps for RHEL 8 with Screenshots
Step:1) Download RHEL 8.0 ISO Image file
Official web site to download RHEL 8 iso image file,
It needs active subscription, for that register our self for evaluation and then download ISO image file
Step:2) Create Installation bootable media (USB or DVD)
After downloading RHEL 8 ISO image file, Burn it into a USB drive or DVD to make it bootable. Boot the system where we want to install RHEL 8. Change BIOS settings to boot from USB or DVD,
Step:3) Select option “Install Red Hat Enterprise Linux 8.0”
When the system starts with installation media (USB or DVD), we will get the following screen, Select “Install Red Hat Enterprise Linux 8.0” and hit enter,
Step:4) Select preferred language for RHEL 8 installation
In this step, we need to select a language that we want to use for RHEL 8 installation, so make a selection that suits to our setup.
Click on “Continue” Button
Step:5) Preparing RHEL 8 Installation
In this step, we will provide system specifications for the installation of RHEL 8. We can configure the followings:
- Keyboard, Language Support
- Time, Date, Time Zone
- Software Selection (Packages)
- Installation Destination
- Kdump (enabled/disabled)
- Networking and Hostname
- Security Policies & System purpose
The installer will automatically pick time zone and will enable the kdump, if we wish to change the time zone then click on “Time & Date” option and then set our preferred time zone and then click on Done.
Click on “Network & Host Name” option to configure IP address and Hostname
If our system is connected to any switch or modem, then it will try to get IP from DHCP server otherwise we can configure IP manually.
Mention the hostname that we want to set and then click on “Apply”. Once we are done with IP address and hostname configuration click on “Done”
Click on “Installation Destination” option to define the installation disk and partition scheme for RHEL 8
As we can see I have around 80 GB free disk space on sda disk drive, I will be creating following customize “Standard Partition” based partitions on this disk,
- /home = 25 GB (xfs file system)
- / = 50 GB (xfs file system)
- /boot = 1024 MB (xfs file system)
- Swap = 4 GB (swap file system)
Note: If we don’t want to create manual partitions then select “Automatic” option from Storage Configuration Tab
click on + “plus” symbol to add new partition, Before that Select “Standard Partition” option from the drop down, instead of “LVM”
Let’s create our first partition as /boot of size 1024 MB
Click on “Add mount point”
To create next partition as / of size 50 GB, i.e. 51200 MB.
click on + symbol and specify the details as shown below,
As we can see installer has created the / partition of 50 GB, if we want to change details then click on Modify option and specify the desired values and then click on Save
Similarly create next three partitions /home of size 25 GB, i.e. 25600 MB.
Click on “Add mount point”
We can see installer has created the /home partition of 25 GB.
Now finally create last partition as swap of size of 4 GB, i.e 4096 MB.
Click on “Add mount point”
Once we are done with partition creations, click on Done on the Next screen, an example is shown below
In the next window, select “Accept Changes”
Step:6) Select Software Packages and select Security Policy and System purpose
After accepting the changes in the above step, we will be redirected to installation summary window.
By default, the installer will select “Server with GUI” as software packages and if we want to change it then click on “Software Selection” option and select our preferred “Basic Environment”
Click on Done
If we want to set the security policies during the installation, then select the required profile from Security policies option else we can leave as it is.
In the “System Purpose” option we can specify the Role, Red Hat Service Level Agreement and Usage. But we can leave this option as it is.
Click on Done to proceed further.
Step:7) select “Begin Installation” option to start installation
Click on “Begin Installation” option in the Installation summary window, to start the installation.
We can see RHEL 8 Installation process is started.
It will ask to set the root password, in “Root Password” Option.
We can create local user by providing details like Full name, User name and Password,
We can make that user administrator, by selecting “Make this user administrator” checkbox
When the installation will be completed, the installer will prompt us to reboot the system,
Click on “Reboot” to restart our system.
Please don’t forget to change boot medium from bios settings so that system boots up with hard disk.
Step:8) Initial Setup after installation
Once the system is rebooted first time after the successful installation, we will get “License Information” window. We need to accept the license agreement (EULA)
click on button “Finish Configuration” to complete the process of “License Information”.
Step:8) RHEL 8 Server Login Screen
Use the same user name and password that we created during the installation.
After the login we will get a couple of Welcome Screen and follow the screen instructions and then finally we will get the following screen,
Click on “Start Using Red Hat Enterprise Linux”
We have successfully installed RHEL 8 Operating System.
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