How to Install Linux(RHEL) OS:

After downloading the RHEL from RedHat web site, we can proceed with the installation. Here, we have explained step by step Linux installation with screen shots.

Note: 

Whatever installation we are doing that is for our lab purpose only. In reality when we work in an organization, we don't actually download the software from website and we don't follow graphical installation steps. Please keep this in mind.

Linux-OS-Installation-Step-By-Step

We have RHEL software available as a bootable DVD.

• Go to the bios settings and change the boot sequence priority to the cdrom.
• Insert the cd or dvd in the drive and start the system.
•  Whenever the system is booting the following screen will appear.
  
  
  
  
  
  
  
  In the above screen, there are some options available and choose "install or upgrade an existing system" and press enter to start with the installation.
•  Now the following window will appear for the hardware check.
  
  
  
  
  
  Choose OK to test the available media otherwise, Skip. 
  
• Choose the language, when language screen appears.
  
  
  
  
  
•  Select the type of the keyboard and click next.
  
  
  
  
  
• As we are configuring this system for lab purpose only, we will choose "basic storage devices" and click next.
  
  
  
  
  
• Name the system from the hostname text box and click next. 
  We can choose any name as hostname or a better approach is follow your organization standards.
  
• Select the time zone of the server from next screen.
  
•   Now the following window will be displayed to enter a root password for the server. 
  
•  Next screen is very important as we have to format the Linux partitions according to our requirements. To create our own partitions, we select "create a custom layout" and then click Next.
  
  
  
  
  
•   Now the following window will be displayed to create the partitions our own. Click "Create" button to create the partition.
  
  
  
  
  
•  After clicking the "create button" the following window will be displayed. Select the "standard partition" option and click the "create" button.
  
  
  
  
  
• Following window will be displayed,
  Select mount point as ‘/’ which is our root file system, file system type is ext4 and the size is 15000 MB.
  Click OK to create the partition.
  
  
  Choose the file system type as "ext4".  
  
  
  
  
•  Similarly, create the /boot file system as follows.
  
  
  
  
  
• Create swap as well as shown below.
  
  
  
  
  
  
  
• By creating the file system when we click ok the following window will be displayed.
  
  
  
  
  
  In this window, we will see all the created file systems summary. Click next.
• By clicking next the following window will be displayed for making changes to the disk.
  
  
  
  Click on the format button and then write changes to the disk.
• By clicking next the following window will be displayed to load the boot loader to the particular partition.
  
  
  
  
  
  We have selected /dev/sda1 slice or partition for loading the boot loader and then click next.
• In the next screen the following window will be displayed to select the software set. Select the desktop option and click next.
  
  
  
• After the dependency checks, the following window will appear and installation continues.
  
  
  
  
  
  
  
• After completing the packages installation click on reboot.
• The system will reboots and welcome screen will appear. It will guide us through couple of more settings.
  
  
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  Click Forward.
• Accept the licensce agreement.
  
  
  
• We can create any new user which is not a root user and proceed further.
  
  
  
  
  
• Select the date and time and click forward.
  
  
  
  
  
  
  
• Allocate some storage foe kdump. 
  
  If any system crashes the total important data and the causes for the crash are stored in this dump.
  
  
  
• Now login to the server using username as root and password as you mentioned during the installation.
  
  
  
  
  
• After logging in to our lab server, we are ready to work with further setups.