About the Oracle Database Preinstallation RPM

If your Linux distribution is Oracle Linux or Red Hat Enterprise Linux, and you are an Oracle Linux support customer, then you can complete most preinstallation configuration tasks by using the Oracle Database Preinstallation RPM for your release.

Oracle Database Preinstallation RPMs are available from the Oracle Linux Network. While not mandatory, Oracle recommends using the Oracle Database Preinstallation RPM to expedite cluster server setup.

When installed, the Oracle Database Preinstallation RPM performs the following actions:

• Automatically downloads and installs any additional RPM packages needed for installing Oracle Grid Infrastructure and Oracle Database, and resolves any dependencies

• Creates an oracle user, and creates the oraInventory (oinstall) and OSDBA (dba) groups for that user

• As needed, sets sysctl.conf settings, system startup parameters, and driver parameters to values based on recommendations from the Oracle Database Preinstallation RPM program

• Sets hard and soft resource limits

• Sets other recommended parameters, depending on your kernel version

• Sets numa=off in the kernel for Linux x86_64 and Linux aarch64 machines.

Configure the Oracle Database Preinstallation RPM once during the initial installation of Oracle Database or Oracle Grid Infrastructure on your system. For subsequent installations on the same system, do not install Oracle Database Preinstallation RPM again.

Do not install the Oracle Database Preinstallation RPM on Oracle Engineered Systems, such as Oracle Exadata Database Machine. Oracle Engineered Systems include integrated system software that contain the required version of the operating system kernel and all software packages.

Note:

• The Oracle Database Preinstallation RPM designated for each Oracle Database release sets kernel parameters and resource limits exclusively for the oracle user account. To use multiple software account owners, manually configure system settings for each additional account.

• The Oracle Database Preinstallation RPM installs X11 client libraries, but it does not install the X Window System server packages. To use graphical user interfaces such as OUI, configuration assistants, and Oracle Enterprise Manager, set the display to a system with X Window System server packages.