How to recreate oraInventory in ebs R12

Edit the oraInst.loc file:
vi /etc/oraInst.loc

Change the inventory_loc to a new location:
inventory_loc=/prod/oraInventory_new

Create the new directory:
mkdir /prod/oraInventory_new

Give permissions to the new directory:
chmod -R 777 /prod/oraInventory_new

-- Add the 10.1.3 Oracle Home to the new created oraInventory:

cd $INST_TOP/ora/10.1.3
. ./APP.env

Go to the $ORACLE_HOME:
cd $ORACLE_HOME

Edit the oraInst.loc and point it to the same location ad done in step 1:
inventory_loc=/prod/oraInventory_new

Add the 10.1.3 Oracle Home to the new oraInventory location:
cd $ORACLE_HOME/appsutil/clone
./ouicli.pl

Verify if the 10.1.3 is added to the new oraInventory directory:

cd /prod/oraInventory_new/ContentsXML

cat inventory.xml

If it's not added, check the /prod/oraInventory_new/logs file.

Verify the oraInventory has the information about the 10.1.3 Oracle Home:
export PATH=$ORACLE_HOME/OPatch:$PATH
opatch lsinventory -detail

-- Add the 10.1.2 Oracle Home to the new created oraInventory:

cd $INST_TOP/ora/10.1.2
. ./APP.env

Go to the $ORACLE_HOME:
cd $ORACLE_HOME

Edit the oraInst.loc and point it to the same location ad done in step 1:
inventory_loc=/prod/oraInventory_new

export TMP=/tmp

Add the 10.1.2 Oracle Home to the new oraInventory location:
cd $ORACLE_HOME/appsutil/clone
./ouicli.pl

Verify if the 10.1.2 is added to the new oraInventory directory:
cd /prod/oraInventory_new/ContentsXML
cat inventory.xml

If it's not added, check the /prod/oraInventory_new/logs file.

Verify the oraInventory has the information about the 10.1.2 Oracle Home:

export PATH=$ORACLE_HOME/OPatch:$PATH
opatch lsinventory -detail

--Add the DB Oracle Home to the new created oraInventory:

cd $ORACLE_HOME
. ./BD.env

Go to the $ORACLE_HOME:
cd $ORACLE_HOME

Edit the oraInst.loc and point it to the same location ad done in step 1:
inventory_loc=/prod/oraInventory_new

Add the DB Oracle Home to the new oraInventory location:
cd $ORACLE_HOME/appsutil/clone
./ouicli.pl

Verify if the DB Oracle Home is added to the new oraInventory directory:
cd /prod/oraInventory_new/ContentsXML
cat inventory.xml

If it's not added, check the /prod/oraInventory_new/logs file.
Verify the oraInventory has the information about the DB Oracle Home:

export PATH=$ORACLE_HOME/OPatch:$PATH
opatch lsinventory -detail

Note:

Running ouicli.pl can result in error:
"Exception in thread "main" java.lang.NoClassDefFoundError: oracle/apps/ad/clone/util/OracleHomeCloner"

This can be fixed by setting Context variable s_clonestage to \clone

For example:

\oracle\PROD\apps\apps_st\comn\clone