How to uninstall Oracle database 11g

This note apply to linux version and Oracle Database RAC or Standalone.

 1. First of all uninstall the database and after grid:

To uninstall the database run as oracle user :

$ORACLE_HOME/deinstall/deinstall

This script will require at the end of process, to run other script as root user.

 2. After uninstall the database uninstall the grid:

To uninstall the grid infrastructure, run as oracle user :

$ORACLE_HOME/deinstall/deinstall

This script will require at the end of process, to run other script as root user.

 3. Remove trash’s :

3.1  TMP:

rm -rf /tmp/*
3.2 Oracle Base

cd $ORACLE_BASE
rm -rf *
3.3 ETC

rm -rf /etc/ora*

Good Luck !