Requirements for Installing Oracle Database/Client 19c (19.19 or higher) on OL9 or RHEL9 64bit (x8664) (Doc ID 2982833.1)

Requirements for installing Oracle Database 19c release(19.19 or higher) 64-bit on OL9 64-bit or RHEL9 (x86_64)

Before you proceed with Installation, please take time to review every below requirement carefully to avoid any obvious issues during Installation of binaries.

• Download the Oracle Database 19c software(LINUX.X64_193000_db_home.zip) from OTN - https://www.oracle.com/technetwork/database/enterprise-edition/downloads/oracle19c-linux-5462157.html
• After you download the Software, Verify the integrity of the Downloaded Software
  Note 549617.1 How To Verify The Integrity Of A Patch/Software Download? [Video]
• If you have downloaded the Software on other Machine, please transfer the zip file on the Server being Installed using Binary Mode and unzip with the Oracle Software user.
• Latest OPatch Utility
• Below Set of Fixes
  
  • 19.22 List of Fixes                  
    19.22 GI RU 35940989 
    For DB Installation - 19.22 DB RU 35943157 and 19.22 OCW RU 35967489 are required
    For Client Installation - Only 19.22 DB RU 35943157 

Important Notes

1. OCW MLRs are required to be applied even to SI DB Homes, because they contain Fixes necessary for the DB Home to support Installer prerequisite expectations for UEK and RHCK kernels on OL9. Same support is needed even for RHEL 9 also.

2. Earlier listed Fixes for 19.19,19.20 and 19.21 have been withdrawn due a regression noticed in one of the Fixes and other Fixes are included in 19.22 RUs. Development strongly recommends applying 19.22(or newer) DB RU & OCW RUs to reduce the number of Fixes required for a certified/successful installation.  

Hardware

Minimum Hardware Requirements

a. Ensure that your system meets the following Physical Memory requirements:

    Minimum:         1 GB of RAM
    Recommended: 2 GB of RAM or more

b. Swap space allocation relative to RAM

NOTE: The above recommendations (from the Oracle® Database Installation Guide 19c for Linux) are MINIMUM recommendations for installations. Further RAM and swap space may be required to tune/improve RDBMS performance.

c. 1.0 GB (1024MB) of disk space (and less than 2TB of disk space) in the /tmp directory.

d. If the free space available in the /tmp directory is less than what is required, then complete one of the following steps:
    - Delete unnecessary files from the /tmp directory to meet the disk space requirement.
    - Set the TMP and TMPDIR environment variables when setting the oracle user's environment.

e. Approximately 7.2 GB of local disk space for the Database Software Files.

f.  If you intend to create a preconfigured database during the installation, then the file system (or file systems) that you choose must have at least 2 GB of free disk space.
    For production databases, you must estimate the disk space requirement depending on the use of the database.

2. Oracle Database is supported on ext2, ext3 and ext4 file systems (see Note:236826.1 for further information)

Software

Certified Operating System (Please see exact Requirements below)

    Oracle Linux 9           
    Red Hat Enterprise Linux 9

a. For Minimal Linux Installation :

A minimal Linux installation option is either a custom installation where you select the Minimal option from Package Group Selection, or where you deselect all packages except for the Base pack. A minimal Linux installation lacks many RPMs required for database installation, so you must use an RPM package for your Oracle Linux release to install the required packages. The package you use depends on your Linux release

b. For a Default Linux Installation
Oracle recommends that you install your Linux operating system with the default software packages (RPMs).
A default Linux installation includes most of the required packages and helps you limit manual verification of package dependencies. Oracle recommends that you do not customize the RPMs during installation.

Kernel requirements

The following kernels are supported:

Oracle Linux 9 with the Unbreakable Enterprise Kernel 7: 5.15.0-1.43.4.2.el9uek.x86_64 or later
Oracle Linux 9 with the Red Hat Compatible Kernel: 5.14.0-70.22.1.0.2.el9_0.x86_64 or later
Red Hat Enterprise Linux 9: 5.14.0-70.22.1.0.2.el9_0.x86_64 or later

NUMA can be turned ON.No issues reported on OL/RHEL 9 when NUMA is ON.

Oracle Universal Installer requires an X Window System (for example, libx)

    The libx packages are part of a default Linux installation.
    If you perform an install on a system with a reduced set of packages, then you must ensure that libx or a similar X Window System package is installed

 At least 1 GB of space in the /tmp directory.

Runlevel : 3 or 5

Oracle User Environment Configuration Checklist :

For new installs, if you have not configured an oraInventory directory, then the installer creates an Oracle inventory that is one directory level up from the Oracle base for the Oracle Grid Infrastructure install, and designates the installation owner's primary group as the Oracle Inventory group.
The oinstall group must be the primary group of all Oracle software installation owners on the server. It should be writable by any Oracle installation owner.
Oracle recommends that you create groups and user accounts required for your security plans before starting installation. Installation owners have resource limits settings and other requirements.

If you have an existing Oracle software installation, and you are using the same user to install this installation, then unset the following environment variables: $ORACLE_HOME,$ORA_NLS10, and $TNS_ADMIN, $ORACLE_BASE, $ORACLE_SID

By default, your operating system includes an entry in /etc/fstab to mount /dev/shm. However, if your Cluster Verification Utility (CVU) or Oracle Universal Installer (OUI) checks fail, ensure that the /dev/shm mount area is of type tmpfs and is mounted with the following options:
rw and exec permissions set on it
Without noexec or nosuid set on it

Set the default file mode creation mask (umask) to 022 in the shell startup file.

Storage Checklist for Oracle Database

At least 7.5 GB for Oracle Database Standard Edition 2.