How to do manual Oracle RDBMS 19C Deinstallation.

How to do manual Oracle  RDBMS 19C  Deinstallation.

Manual way to Delete the Oracle 19c.

step 1.

Detach Oracle home '/oracle/PRD/19.0.0' from the central inventory on the local node.

step 2.

Delete directory '/oracle/PRD/19.0.0' on the local node

step 3.

Delete directory '/oracle/PRD/oraInventory19.0.0'

Using Oracle Tool  ./deinstall  

[oraprd@prd1 deinstall]$ ./deinstall

Checking for required files and bootstrapping ...

Please wait ...

Location of logs /tmp/deinstall2020-06-07_10-55-00PM/logs/

############ ORACLE DECONFIG TOOL START ############

######################### DECONFIG CHECK OPERATION START #########################

## [START] Install check configuration ##

Checking for existence of the Oracle home location /oracle/PRD/19.0.0

Oracle Home type selected for deinstall is: Oracle Single Instance Database

Oracle Base selected for deinstall is: /oracle/PRD

Checking for existence of central inventory location /oracle/PRD/oraInventory19.0.0

## [END] Install check configuration ##

Network Configuration check config START

Network de-configuration trace file location: /tmp/deinstall2020-06-07_10-55-00PM/logs/netdc_check2020-06-07_10-55-08PM.log

Network Configuration check config END

Database Check Configuration START

Database de-configuration trace file location: /tmp/deinstall2020-06-07_10-55-00PM/logs/databasedc_check2020-06-07_10-55-08PM.log

Use comma as separator when specifying list of values as input

Specify the list of database names that are configured in this Oracle home []:

Database Check Configuration END

######################### DECONFIG CHECK OPERATION END #########################

####################### DECONFIG CHECK OPERATION SUMMARY #######################

Oracle Home selected for deinstall is: /oracle/PRD/19.0.0

Inventory Location where the Oracle home registered is: /oracle/PRD/oraInventory19.0.0

Do you want to continue (y - yes, n - no)? [n]: y

A log of this session will be written to: '/tmp/deinstall2020-06-07_10-55-00PM/logs/deinstall_deconfig2020-06-07_10-55-06-PM.out'

Any error messages from this session will be written to: '/tmp/deinstall2020-06-07_10-55-00PM/logs/deinstall_deconfig2020-06-07_10-55-06-PM.err'

######################## DECONFIG CLEAN OPERATION START ########################

Database de-configuration trace file location: /tmp/deinstall2020-06-07_10-55-00PM/logs/databasedc_clean2020-06-07_10-55-08PM.log

Network Configuration clean config START

Network de-configuration trace file location: /tmp/deinstall2020-06-07_10-55-00PM/logs/netdc_clean2020-06-07_10-55-08PM.log

De-configuring backup files...

Backup files de-configured successfully.

The network configuration has been cleaned up successfully.

Network Configuration clean config END

######################### DECONFIG CLEAN OPERATION END #########################

####################### DECONFIG CLEAN OPERATION SUMMARY #######################

#######################################################################

############# ORACLE DECONFIG TOOL END #############

Using properties file /tmp/deinstall2020-06-07_10-55-00PM/response/deinstall_2020-06-07_10-55-06-PM.rsp

Location of logs /tmp/deinstall2020-06-07_10-55-00PM/logs/

############ ORACLE DEINSTALL TOOL START ############

####################### DEINSTALL CHECK OPERATION SUMMARY #######################

A log of this session will be written to: '/tmp/deinstall2020-06-07_10-55-00PM/logs/deinstall_deconfig2020-06-07_10-55-06-PM.out'

Any error messages from this session will be written to: '/tmp/deinstall2020-06-07_10-55-00PM/logs/deinstall_deconfig2020-06-07_10-55-06-PM.err'

######################## DEINSTALL CLEAN OPERATION START ########################

## [START] Preparing for Deinstall ##

Setting LOCAL_NODE to prd1

Setting CRS_HOME to false

Setting oracle.installer.invPtrLoc to /tmp/deinstall2020-06-07_10-55-00PM/oraInst.loc

Setting oracle.installer.local to false

## [END] Preparing for Deinstall ##

Setting the force flag to false

Setting the force flag to cleanup the Oracle Base

Oracle Universal Installer clean START

Detach Oracle home '/oracle/PRD/19.0.0' from the central inventory on the local node : Done

Delete directory '/oracle/PRD/19.0.0' on the local node : Done

Delete directory '/oracle/PRD/oraInventory19.0.0' on the local node : Done

The Oracle Base directory '/oracle/PRD' will not be removed on local node. The directory is not empty. User needs to manually cleanup this directory.

Oracle Universal Installer cleanup was successful.

Oracle Universal Installer clean END

## [START] Oracle install clean ##

## [END] Oracle install clean ##

######################### DEINSTALL CLEAN OPERATION END #########################

####################### DEINSTALL CLEAN OPERATION SUMMARY #######################

Successfully detached Oracle home '/oracle/PRD/19.0.0' from the central inventory on the local node.

Successfully deleted directory '/oracle/PRD/19.0.0' on the local node.

Successfully deleted directory '/oracle/PRD/oraInventory19.0.0' on the local node.

Oracle Universal Installer cleanup was successful.

Run 'rm -r /etc/oraInst.loc' as root on node(s) 'prd1' at the end of the session.

Run 'rm -r /opt/ORCLfmap' as root on node(s) 'prd1' at the end of the session.

Run 'rm -r /etc/oratab' as root on node(s) 'prd1' at the end of the session.

Review the permissions and contents of '/oracle/PRD' on nodes(s) 'prd1'.

If there are no Oracle home(s) associated with '/oracle/PRD', manually delete '/oracle/PRD' and its contents.

Oracle deinstall tool successfully cleaned up temporary directories.

#######################################################################

############# ORACLE DEINSTALL TOOL END #############

[oraprd@prd1 deinstall]$ ls -ld /oracle/PRD/oraInventory19.0.0

ls: cannot access /oracle/PRD/oraInventory19.0.0: No such file or directory

[oraprd@prd1 deinstall]$ ls -ld /oracle/PRD/19.0.0

ls: cannot access /oracle/PRD/19.0.0: No such file or directory

[oraprd@prd1 deinstall]$