Oracle Central Inventory (oraInventory) Not Found / Missing oraInst.loc Configuration

This error occurs when Oracle Universal Installer (OUI) or RapidWiz cannot find the Oracle Central Inventory (oraInventory).

Central Inventory does not exist. Skipping central inventory check...
    Trying local inventory in Oracle Home...
    Cannot find oraInventory
    Please create oraInst.loc in the proper directory for your operating system.
    The contents should look like this:
    inventory_loc=/oracle/oraInventory
    where "/oracle/oraInventory" is the direcotry where the central inventory is to be located.

1. Check if oraInst.loc exists

On Linux:

# cat /etc/oraInst.loc

If the file does not exist, create it.

2. Create Oracle Inventory Directory

As root: DB Side

# mkdir -p /oradata/prod/app/oraInventory
# chown -R oracle:dba/oradata/prod/app/oraInventory
# chmod -R 775 /oradata/prod/app/oraInventory

As root: Application Side
# mkdir -p /apps/EBS122/oraInventory
# chown -R applmgr:dba/apps/EBS122/oraInventory
# chmod -R 775 /apps/EBS122/oraInventory
Adjust ownership & directory according to your installation user and group.

3. Create /etc/oraInst.loc
As root:
#vi /etc/oraInst.loc
Contents: DB Side
inventory_loc=/oradata/prod/app/oraInventory
inst_group=dba

Contents: Application Side
inventory_loc=/apps/EBS122/oraInventory
inst_group=dba

Set permissions:
chmod 664 /etc/oraInst.loc

4. Verify
As root:
#cat /etc/oraInst.loc