If you're an Oracle DBA, system administrator, or someone preparing for enterprise database deployments, learning Oracle 26 AI Silent Installation on Linux is a must. Silent installation is the preferred method for production environments because it is faster, repeatable, and ideal for automation.

In this guide, we will walk through the complete Oracle Database 26 AI silent installation on Linux, including prerequisites, OS configuration, response file setup, installation commands, and post-installation verification.

This tutorial is designed for Oracle Linux and RHEL users and follows production-ready best practices used by DBAs in enterprise environments.

Oracle 26 AI GUI installation on Linux

Why Use Silent Installation for Oracle 26 AI?

Unlike GUI installation, silent installation allows DBAs to install Oracle Database without a graphical interface. This is especially useful for:

• Production servers
• Remote Linux environments
• Automated deployments
• Cloud VM installations
• Data center environments
• Standardized enterprise setups

Silent installation saves time and ensures consistency across multiple servers.

System Requirements for Oracle 26 AI Installation

Before starting the installation, verify the following:

Minimum Requirements

Operating System

• Oracle Linux 8 / 9
• Red Hat Enterprise Linux (RHEL) 8 / 9

Hardware Requirements

• RAM: Minimum 8 GB (Recommended 16 GB+)
• Swap: As per RAM requirement
• Disk Space: Minimum 100 GB free
• CPU: Minimum 2 CPUs

Required Packages

Install all prerequisite packages before proceeding.

Step 1: Create Oracle Users and Groups

Login as root and run:

groupadd oinstall
groupadd dba
groupadd oper

useradd -g oinstall -G dba,oper oracle

passwd oracle

This creates the required Oracle software owner account.

Step 2: Create Oracle Directories

These directories will store Oracle binaries and inventory files.

mkdir -p /u01/app/oracle/product/26.0.0/dbhome_1
mkdir -p /u01/app/oraInventory

chown -R oracle:oinstall /u01
chmod -R 775 /u01

Step 3: Configure Kernel Parameters

Edit the file:

vi /etc/sysctl.conf

Add:

fs.file-max = 6815744
kernel.sem = 250 32000 100 128
kernel.shmall = 2097152
kernel.shmmax = 8589934592
net.ipv4.ip_local_port_range = 9000 65500
fs.aio-max-nr = 1048576

Apply changes:

sysctl -p

Step 4: Configure User Limits

Edit:

vi /etc/security/limits.conf

Add:

oracle soft nofile 1024
oracle hard nofile 65536
oracle soft nproc 16384
oracle hard nproc 16384
oracle soft stack 10240
oracle hard stack 32768

This improves Oracle process handling and performance.

Step 5: Set Oracle Environment Variables

Login as oracle user:

su - oracle

Edit:

vi ~/.bash_profile

Add:

export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/26.0.0/dbhome_1
export ORACLE_SID=ORCL
export PATH=$ORACLE_HOME/bin:$PATH
export LD_LIBRARY_PATH=$ORACLE_HOME/lib
export TMP=/tmp

Apply:

source ~/.bash_profile

Step 6: Upload and Extract Oracle 26 AI Software

Upload the Oracle installation zip file to the server. Download link for Oracle 26 AI home binary

Example:

cd /u01/app/oracle/product/26.0.0/dbhome_1

unzip LINUX.X64_26AI_DB_HOME.zip

Make installer executable:

chmod -R 775 /u01

Step 7: Prepare Silent Installation Response File

Navigate to the response file directory:

cd $ORACLE_HOME/install/response

Copy template:

cp db_install.rsp /home/oracle/db_install.rsp

Edit:

vi /home/oracle/db_install.rsp

Update key parameters:

oracle.install.option=INSTALL_DB_SWONLY
UNIX_GROUP_NAME=oinstall
INVENTORY_LOCATION=/u01/app/oraInventory
ORACLE_HOME=/u01/app/oracle/product/26.0.0/dbhome_1
ORACLE_BASE=/u01/app/oracle
oracle.install.db.InstallEdition=EE
oracle.install.db.OSDBA_GROUP=dba
oracle.install.db.OSOPER_GROUP=oper
DECLINE_SECURITY_UPDATES=true

This file controls the silent installation process.

Step 8: Start Oracle 26 AI Silent Installation

Run:

cd $ORACLE_HOME

./runInstaller -silent -responseFile /home/oracle/db_install.rsp -ignorePrereq

The installer will start in silent mode.

Wait until it asks for root script execution.

Step 9: Run Root Scripts

Login as root and execute:

/u01/app/oraInventory/orainstRoot.sh

/u01/app/oracle/product/26.0.0/dbhome_1/root.sh

These scripts finalize the Oracle installation.

Step 10: Verify Oracle Installation

Login again as Oracle and run:

sqlplus / as sysdba

Check:

SELECT name FROM v$database;
SELECT banner_full FROM v$version;

This confirms the installation is successful.

Common Oracle 26 AI Installation Errors

X Display Error

Unable to verify the graphical display setup

Fix

Use silent installation instead of GUI mode.

Missing Package Error

Install the required RPM packages before installation.

Permission Denied Error

Verify ownership:

chown -R oracle:oinstall /u01

Swap Size Error

Increase Linux swap space before installation.