Perform the following steps to deploy DPOD on a Pre-installed CentOS / RHEL : 

• Red Hat Enterprise Linux Server release 7.2, 7.4 , 7.5 or 7.6 (7.3 is not supported)
• CentOS version 7.2 / 7.4 / 7.6 / 7.7

Prepare the Installation files

1. Download the CEF files and move them to your appliance's /tmp directory.
   Make sure there is a minimum of 1GB available free space on /tmp directory after you copied the CEF file.
   You can execute the CEF file from another directory or alternatively, instruct the CEF file to extract to different directory using the command option  --dest-dir  <directory path> 
   
   

2. Run chmod 755 on the files

Execute the CEF File 

1. From the  location of the CEF file, execute the CEF  (the CEF file is in a Compressed Executable Format) 

   For example, if the file name is DPOD-version-1.cef   – run ./DPOD-version-1.cef 

The Installation Process

1. The CEF installer displays a series of questions, requiring you to verify that your appliance meets the installation prerequisites
   
   
   
   
2. Once you answered Yes to all questions, the installer will verify the system meets all prerequisites
3. Next, you can change the time and date settings (or leave them as they are)
   
   
    

4. Choose an environment name for this DPOD installation, each DPOD installation must have a unique 4-character environment name

   If you are installing a second DPOD machine that will be used as the standby machine in a DR Active/Standby scenario, the environment name must be identical to the environment name of the active DPOD installation.

   
   
   
   

5. Choose whether you use SSD storage
   
   
   
6. Set Store Service dedicated user
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7. (Optional) If you have 2 NIC than this question may appear :
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8. Accept or Decline the EULA
   
   
   
9. Choose the installation architecture, Ensure your appliance has enough memory and storage available, or the installation will stop
   The Architecture options you see on-screen may differ from the ones in the screenshot below, as they depend on the installation package you obtained.
   
   
   
   
10. The installation will commence. The process takes 5-15 minutes, and when it ends the installer displays a message indicating whether the process was successful or not,
    alongside the name of the installation log file
    
    
    
    
11. Verify your installation