Step-by-step – Oracle 12c R2 Database Installation in Ubuntu 20.04

Install DB Software

12. 12. Running Oracle 12c R2 DB Installer

    So now Run the Installation Script
    First, give Execution permissions:

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    chmod -R +x /tmp/database

    And then to Launch the Wizard:

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    /tmp/database/runInstaller

    Solution for Display Not Set or Issue

    Here Oracle 12c R2 DB Setting Display

    Oracle 12c R2 Database Install Troubleshooting Guides/Tips

13. 13. Installing Oracle 12c R2 DB Software

    Then Follow the Installation’s Wizard
    Here is Shown in the GUI form.
    Especially relevant: Confirm for Installation also on Warning about System does Not Meeting Minimum Requirements!
    
    If you Do Not Dispose of a Subcription Uncheck Security Updates and leave Blank Support Password and Pursue!
    
    Then Choose “Install Software Only”!
    
    On “Installation Options” Choose if a “Single Instance” like here or instead a “Cluster”.
    
    Then Choose the “Enterprise Edition”
    
    Select the Installation Location.
    
    Again for the OraInventory.
    
    Next Confirm the Installation Groups.
    
    Review the “Summary” and Possibly take a Copy.
    
    Finally, Click on “Install” to Start Installation Process.

    Solving Oracle 12c R2 DB Libs Linking Errors on Ubuntu Focal.

    Here Oracle 12c R2 DB Troubleshooting Guide

    Linux Oracle 12c R2 Database Installation Troubleshooting Errors

    

    Finally, Run the Configuration Scripts
    As shown on Display or Shell:

    
    As in our Setup:

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    sudo /u01/app/oraInventory/orainstRoot.sh

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    sudo /u01/app/oracle/product/12/dbhome_1/root.sh

    
    And Finally, the Installation Should be Achieved Successfully!