![]() If you run deinstall from the $ORACLE_HOME/deinstall path, then the -home flag is not required because the tool knows from which home it is being run. To deinstall Oracle software using the deinstall command in the Oracle home you plan to deinstall, provide a parameter file in another location, and do not use the -home flag. Use this flag to indicate the home path of the Oracle home to check or deinstall. ![]() In addition, you can run the deinstall tool from other locations, or with a parameter file, or select other options to run the tool. For example, do not run the deinstallation tool from the 12.1.0.1 installation media to remove Oracle software from an existing 11.2.0.4 Oracle home. Do not run the deinstallation tool from a later release to remove Oracle software from an earlier release. You must run the deinstallation tool from the same release to remove Oracle software. The deinstall command stops Oracle software, and removes Oracle software and configuration files on the operating system. Provide information about your servers as prompted or accept the defaults. The default method for running the deinstall tool is from the deinstall directory in the Oracle home as the installation owner: Oracle recommends that you run the deinstallation tool as the Oracle software installation owner. The command uses the following syntax, where variable content is indicated in italics:ĭeinstall -home complete path of Oracle home [-params name1= value The deinstallation tool deletes Oracle Database configuration files, user data, and fast recovery area (FRA) files even if they are located outside of the Oracle base directory path. If you have any user data in these locations in the Oracle base that is owned by the user account that owns the Oracle software, then the deinstall command deletes this data. ![]() Oracle strongly recommends that you configure your installations using an Optimal Flexible Architecture (OFA) configuration, and that you reserve Oracle base and Oracle home paths for exclusive use of Oracle software. When you run the deinstall command, if the central inventory (oraInventory) contains no other registered homes besides the home that you are deconfiguring and removing, then the deinstall command removes the following files and directory contents in the Oracle base directory of the Oracle Database installation owner:
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