如果想要卸载，可以使用【runInstaller】，具体如下：
删除前，先查看下当前的情况：
[oracle@ora12c-1 ~]$ env | grep HOME HOME=/home/oracle ORACLE_HOME=/home/app/oracle/12c/release_2/db_1 [oracle@ora12c-1 ~]$ du -sh $ORACLE_HOME 7.2G /home/app/oracle/12c/release_2/db_1 [oracle@ora12c-1 ~]$
进入安装介质的目录，运行【runInstaller】：
[root@ora12c-1 ~]# su - oracle Last login: Wed Mar 8 11:00:11 CST 2017 on pts/0 [oracle@ora12c-1 ~]$ cd /software/oracle/database/ [oracle@ora12c-1 database]$ [oracle@ora12c-1 database]$ ./runInstaller -deinstall -home $ORACLE_HOME Checking for required space in /tmp directory ... Space check on /tmp directory passed Bootstrapping the deinstall components Please wait ... Bootstrapping completed Location of logs /tmp/deinstall2017-03-08_11-11-08AM/logs/ ############ ORACLE DECONFIG TOOL START ############ ######################### DECONFIG CHECK OPERATION START ######################### ## [START] Install check configuration ## Checking for existence of the Oracle home location /home/app/oracle/12c/release_2/db_1 Oracle Home type selected for deinstall is: Oracle Single Instance Database Oracle Base selected for deinstall is: /home/app/oracle Checking for existence of central inventory location /home/app/oraInventory ## [END] Install check configuration ## Network Configuration check config START Network de-configuration trace file location: /tmp/deinstall2017-03-08_11-11-08AM/logs/netdc_check2017-03-08_11-11-30-AM.log Network Configuration check config END Database Check Configuration START Database de-configuration trace file location: /tmp/deinstall2017-03-08_11-11-08AM/logs/databasedc_check2017-03-08_11-11-30-AM.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 []: smoking ###### For Database 'smoking' ###### Specify the type of this database (1.Single Instance Database|2.Oracle Restart Enabled Database) [1]: 1 Specify the diagnostic destination location of the database [/home/app/oracle/diag/rdbms/smoking]: Specify the storage type used by the Database ASM|FS []: FS Specify the list of directories if any database files exist on a shared file system. If 'smoking' subdirectory is found, then it will be deleted. Otherwise, the specified directory will be deleted. Alternatively, you can specify list of database files with full path [ ]: Specify the fast recovery area location, if it is configured on the file system. If 'smoking' subdirectory is found, then it will be deleted. []: Specify the database spfile location [ ]: Specify if database Archive Mode is Enabled. y/n [n]: y Database Check Configuration END Oracle Configuration Manager check START OCM check log file location : /tmp/deinstall2017-03-08_11-11-08AM/logs//ocm_check6805.log Oracle Configuration Manager check END ######################### DECONFIG CHECK OPERATION END ######################### ####################### DECONFIG CHECK OPERATION SUMMARY ####################### Oracle Home selected for deinstall is: /home/app/oracle/12c/release_2/db_1 Inventory Location where the Oracle home registered is: /home/app/oraInventory The following databases were selected for de-configuration : smoking Database unique name : smoking Storage used : FS Checking the config status for CCR Oracle Home exists with CCR directory, but CCR is not configured CCR check is finished Do you want to continue (y - yes, n - no)? [n]: y A log of this session will be written to: '/tmp/deinstall2017-03-08_11-11-08AM/logs/deinstall_deconfig2017-03-08_11-11-26-AM.out' Any error messages from this session will be written to: '/tmp/deinstall2017-03-08_11-11-08AM/logs/deinstall_deconfig2017-03-08_11-11-26-AM.err' ######################## DECONFIG CLEAN OPERATION START ######################## Database de-configuration trace file location: /tmp/deinstall2017-03-08_11-11-08AM/logs/databasedc_clean2017-03-08_11-14-30-AM.log Database Clean Configuration START smoking This operation may take few minutes. Database Clean Configuration END smoking Network Configuration clean config START Network de-configuration trace file location: /tmp/deinstall2017-03-08_11-11-08AM/logs/netdc_clean2017-03-08_11-14-44-AM.log De-configuring backup files... Backup files de-configured successfully. The network configuration has been cleaned up successfully. Network Configuration clean config END Oracle Configuration Manager clean START OCM clean log file location : /tmp/deinstall2017-03-08_11-11-08AM/logs//ocm_clean6805.log Oracle Configuration Manager clean END ######################### DECONFIG CLEAN OPERATION END ######################### ####################### DECONFIG CLEAN OPERATION SUMMARY ####################### Successfully de-configured the following database instances : smoking Cleaning the config for CCR As CCR is not configured, so skipping the cleaning of CCR configuration CCR clean is finished ####################################################################### ############# ORACLE DECONFIG TOOL END ############# Using properties file /tmp/deinstall2017-03-08_11-11-08AM/response/deinstall_2017-03-08_11-11-26-AM.rsp Location of logs /tmp/deinstall2017-03-08_11-11-08AM/logs/ ############ ORACLE DEINSTALL TOOL START ############ ####################### DEINSTALL CHECK OPERATION SUMMARY ####################### A log of this session will be written to: '/tmp/deinstall2017-03-08_11-11-08AM/logs/deinstall_deconfig2017-03-08_11-11-26-AM.out' Any error messages from this session will be written to: '/tmp/deinstall2017-03-08_11-11-08AM/logs/deinstall_deconfig2017-03-08_11-11-26-AM.err' ######################## DEINSTALL CLEAN OPERATION START ######################## ## [START] Preparing for Deinstall ## Setting LOCAL_NODE to ora12c-1 Setting CRS_HOME to false Setting oracle.installer.invPtrLoc to /tmp/deinstall2017-03-08_11-11-08AM/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 '/home/app/oracle/12c/release_2/db_1' from the central inventory on the local node : Done Delete directory '/home/app/oracle/12c/release_2/db_1' on the local node : Done Delete directory '/home/app/oraInventory' on the local node : Done Failed to delete the directory '/home/app/oracle/tfa/ora12c-1/output/dbzip'. Either user has no permission to delete or it is in use. Failed to delete the directory '/home/app/oracle/tfa/ora12c-1/output/tracefiles'. Either user has no permission to delete or it is in use. Failed to delete the directory '/home/app/oracle/tfa/ora12c-1/diagnostics_to_collect'. Either user has no permission to delete or it is in use. The Oracle Base directory '/home/app/oracle' will not be removed on local node. The directory is not empty. 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 ####################### Run '/home/app/oracle/tfa/ora12c-1/tfa_home/bin/tfactl uninstall' as root to uninstall tfa. Successfully detached Oracle home '/home/app/oracle/12c/release_2/db_1' from the central inventory on the local node. Successfully deleted directory '/home/app/oracle/12c/release_2/db_1' on the local node. Successfully deleted directory '/home/app/oraInventory' on the local node. Oracle Universal Installer cleanup was successful. Run 'rm -r /etc/oraInst.loc' as root on node(s) 'ora12c-1' at the end of the session. Run 'rm -r /opt/ORCLfmap' as root on node(s) 'ora12c-1' at the end of the session. Run 'rm -r /etc/oratab' as root on node(s) 'ora12c-1' at the end of the session. Review the permissions and contents of '/home/app/oracle' on nodes(s) 'ora12c-1'. If there are no Oracle home(s) associated with '/home/app/oracle', manually delete '/home/app/oracle' and its contents. Oracle deinstall tool successfully cleaned up temporary directories. ####################################################################### ############# ORACLE DEINSTALL TOOL END ############# [oracle@ora12c-1 database]$ [oracle@ora12c-1 database]$
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Done。