Detaching Oracle Homes from the Central Inventory

You can detach an Oracle home from the Central Inventory. When you pass this flag, it updates the oraclehomeproperties.xml present in the Oracle home. The syntax is as follows:

./runInstaller -silent -detachHome -invPtrLoc ./oraInst.loc 
ORACLE_HOME="<Oracle_Home_Location>" ORACLE_HOME_NAME="<Oracle_Home_Name>"

You can use the -local flag to detach the Oracle home from the inventory of the local node. If you are using a shared Oracle home, use -cfs flag. This ensures that the local node information is not populated inside a shared Oracle home.

./runInstaller -silent -local -cfs -detachHome -invPtrLoc ./oraInst.loc 
ORACLE_HOME="<Oracle_Home_Location>" ORACLE_HOME_NAME="<Oracle_Home_Name>"

./runInstaller -silent -detachHome -invPtrLoc ./oraInst.loc 
ORACLE_HOME="<Oracle_Home_Location>" ORACLE_HOME_NAME="<Oracle_Home_Name>"

You can completely clean the Oracle home and remove the home directory by using the -removeallfiles flag. The syntax is as follows:

./runInstaller -silent -deinstall -removeallfiles -invPtrLoc ./oraInst.loc 
ORACLE_HOME="<Oracle_Home_Location>" ORACLE_HOME_NAME="<Oracle_Home_Name>"

If you want to disable the warning message that appears when you use the -removeallfiles flag, use the -nowarningonremovefiles flag. The syntax is as follows:

./runInstaller -silent -deinstall -nowarningonremovefiles 

-invPtrLoc ./oraInst.loc 
ORACLE_HOME="<Oracle_Home_Location>"  ORACLE_HOME_NAME="<Oracle_Home_Name>"