Deinstall Oracle software – runInstaller

— The command to be executed
./runInstaller -deinstall -home /u01/app/oracle/product/12.1.0/dbhome_1 -silent -paramfile /tmp/deinstall2021-07-02_08-50-59AM/response/deinstall_OraDB12Home1.rsp

1. Login to the server
   
2. Check the Current Oracle Home.
   [oracle@srv1 product]$ echo $ORACLE_HOME
   /u01/app/oracle/product/12.1.0/dbhome_1
   
3. Correctly note the Oracle Home to be removed.
   
4. Check the contents of “inventory.xml” in oraInventory/ContentsXML folder
   [oracle@srv1 product]$ find . -name oraInventory
   [oracle@srv1 product]$ cd /u01
   [oracle@srv1 u01]$ find . -name oraInventory
   ./app/oraInventory
   [oracle@srv1 u01]$ cd ./app/oraInventory
   [oracle@srv1 oraInventory]$ ls
   ContentsXML logs oui
   [oracle@srv1 oraInventory]$ cd ContentsXML
   [oracle@srv1 ContentsXML]$ ls
   comps.xml inventory.xml libs.xml
   [oracle@srv1 ContentsXML]$ cat inventory.xml

5. Generate the response file
   [oracle@srv1 database]$./runInstaller -deinstall -home /u01/app/oracle/product/12.1.0/dbhome_1 -silent -checkonly
   
6. Perform the uninstall of the software
   [oracle@srv1 database]$ ./runInstaller -deinstall -home /u01/app/oracle/product/12.1.0/dbhome_1 -silent -paramfile /tmp/deinstall2021-07-02_08-50-59AM/response/deinstall_OraDB12Home1.rsp