Performing Prerequisite Tasks for Installing Oracle Database

To ensure that your platform meets the minimum requirements for installing Oracle Database 12c Release 1 (12.1.0.2) or 19c (19.3.0), you must perform the following preparatory tasks:

• Create Owners, Groups, and Mount Points
  
• Configure Kernel Resources and Adjust Operating System Environment
  
• Install Latest Operating System Patches
  

Create Owners, Groups, and Mount Points

To create the software owner, required groups, and mount points:

1. Create the software owner and groups:

   • Create a UNIX user to own the Oracle software. Typically, the user name is oracle.

   • Create two groups: one is the Oracle Inventory group; the other is the operating system DBA group. Typically, the group names are oinstall and dba, respectively.

2. Create mount points owned by the oracle user:

   • Create a software mount point of at least 10 GB.

   • Create mount points to hold the database files, control files, and log files, respectively.

3. Test permissions. Ensure that the oracle user can write to the new mount points and all subdirectories.

Configure Kernel Resources and Adjust Operating System Environment

The performance of Oracle Database relies on proper tuning of operating system parameters. In addition, if you are creating several Oracle instances, you might have to increase the amount of shared memory and semaphores on the system by setting kernel parameters.

For details, see the "Configure Kernel Parameters" section of the Oracle Database 12c Release 1 or 19c Installation Guide for your operating system.

Install Latest Operating System Patches

Download and install the latest operating system patches required for Oracle, if necessary. Review the latest platform-specific install bulletins for Oracle Database 12c Release 1 (12.1.0.2) or 19c (19.3.0).