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Oracle Database - Oracle Inventory directory (oraInventory)
Table of Contents
1 - About
The Oracle Inventory directory (oraInventory) stores an inventory of all software installed on the system. It is required and shared by all Oracle software installations on a single system. If you have an existing Oracle Inventory path, then Oracle Universal Installer continues to use that Oracle Inventory.
2 - Articles Related
3 - Directory
- All Oracle software installations rely on this directory. Ensure that you back it up regularly.
- Do not delete this directory unless you have completely removed all Oracle software from the system.
- By default, the Oracle Inventory directory is not installed under the Oracle Base directory. This is because all Oracle software installations share a common Oracle Inventory, so there is only one Oracle Inventory for all users. Whereas, there is a separate Oracle Base for each user.
3.1 - With an OFA-compliant directory structure
The first time you install Oracle software on a system, Oracle Universal Installer checks if you have created an OFA-compliant directory structure with the format u[01-09]/app, such as /u01/app, and that the user running the installation has permissions to write to that path. If this is true, then Oracle Universal Installer creates the Oracle Inventory directory similar to /u[01-09]/app/oraInventory.
If you have set the environment variable ORACLE_BASE for the oracle user, then Oracle Universal Installer creates the Oracle Inventory directory similar to $ORACLE_BASE/../oraInventory. For example, if ORACLE_BASE is set to /opt/oracle/11, then the Oracle Inventory directory is created similar to /opt/oracle/oraInventory.
mkdir -p /u01/app/oraInventory chown -R oracle:oinstall /u01/app/oraInventory chmod -R 775 /u01/app/oraInventory
3.2 - Without OFA-compliant path
If you have neither created an OFA-compliant path nor set ORACLE_BASE, then the Oracle Inventory directory is placed in the home directory of the user that is performing the installation. For example:
Oracle Universal Installer creates the directory that you specify and sets the correct owner, group, and permissions for it. You do not need to create it.
4 - oraInst.loc
When you install Oracle software on the system for the first time, Oracle Universal Installer creates the oraInst.loc file.
This file identifies:
- the name of the Oracle Inventory group (typically, oinstall),
- and the path of the Oracle Inventory directory.
An oraInst.loc file has contents similar to the following:
- central_inventory_location is the location of the Oracle Central Inventory,
- and group is the name of the group that has permissions to write to the central inventory.
To determine whether the oraInst.loc file exists, enter the following command:
# more /etc/oraInst.loc
If the oraInst.loc file exists, then the output from this command is similar to the following:
In the previous output example:
- The inventory_loc group shows the location of the Oracle Inventory
- The inst_group parameter shows the name of the Oracle Inventory group (in this example, oinstall).
5 - Group
To determine if the Oracle Inventory group exist, enter the following command:
grep oinstall /etc/group
If the oraInst.loc file does not exist, then create the Oracle Inventory group by entering the following command:
6 - Log
The following are the default locations for supported operating systems:
- Linux and UNIX: USER_HOME/oraInventory/logs/
- Windows: C:\\Program Files\Oracle\Inventory\logs\