是否需要修改数据库的详细信息，默认n，直接回车。

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

是否继续，填写y，回车

脚本结尾，提示需要使用root用户删除如下三个脚本。

rm -rf /etc/oraInst.loc

rm -rf /opt/ORCLfmap

rm -rf /etc/oratab

至此，Oracle删除完毕。

将Oracle软件再次安装

./runInstaller -silent -responseFile /home/oracle/etc/install_software_only.rsp

3. 使用专用工具

? Oracle官方推荐使用专门的删除工具。原因是内置的deinstall工具脚本中常常带有很多bug，很多时候不能完全的将其删除干净。特别是Windows环境下的卸载工具，不能正常工作的场景很多。

上传工具包至服务器，直接解压，解压完毕后即可直接使用。

[oracle@localhost ~]$ unzip p13390677_112040_Linux-x86-64_7of7.zip

[oracle@localhost ~]$ cd deinstall/

[oracle@localhost deinstall]$ ./deinstall -help

deinstall -home

? ? ? ? ? ? ? [ -silent ]

? ? ? ? ? ? ? [ -checkonly ]

? ? ? ? ? ? ? [ -local ]

? ? ? ? ? ? ? [ -paramfile ]

? ? ? ? ? ? ? [ -params ]

? ? ? ? ? ? ? [ -o ]

? ? ? ? ? ? ? [ -tmpdir ]

? ? ? ? ? ? ? [ -logdir ]

? ? ? ? ? ? ? [ -help : Type -help to get more information on each of the above options. ]

删除Oracle

[oracle@localhost deinstall]$ ./deinstall -home $ORACLE_HOME

Location of logs /home/oracle/deinstall/./logs/

############ ORACLE DEINSTALL & DECONFIG TOOL START ############

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

## [START] Install check configuration ##

Checking for existence of the Oracle home location /u01/app/oracle/product/11.2.0/db_1

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

Oracle Base selected for deinstall is: /u01/app/oracle

Checking for existence of central inventory location /u01/app/oraInventory

Checking for sufficient temp space availability on node(s) : 'localhost.localdomain'

## [END] Install check configuration ##

Network Configuration check config START

Network de-configuration trace file location: /home/oracle/deinstall/./logs/netdc_check2015-08-22_12-34-54-AM.log

Network Configuration check config END

Database Check Configuration START

Database de-configuration trace file location: /home/oracle/deinstall/./logs/databasedc_check2015-08-22_12-35-03-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 []: orcl

###### For Database 'orcl' ######

Specify the type of this database (1.Single Instance Database|2.Oracle Restart Enabled Database) [1]:

Specify the diagnostic destination location of the database [/u01/app/oracle/diag/rdbms/orcl]:

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 'orcl' 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 [ ]: /u01/app/oracle/oradata

Specify the fast recovery area location, if it is configured on the file system. If 'orcl' subdirectory is found, then it will be deleted. []: /u01/app/oracle/fast_recovery_area

Specify the database spfile location [ ]: /u01/app/oracle/product/11.2.0/db_1/dbs/

Database Check Configuration END

Enterprise Manager Configuration Assistant START

EMCA de-configuration trace file location: /home/oracle/deinstall/./logs/emcadc_check2015-08-22_12-42-35-AM.log

Checking configuration for database orcl

Enterprise Manager Configuration Assistant END

Oracle Configuration Manager check START

OCM check log file location : /home/oracle/deinstall/./logs//ocm_check_2015-08-22_12-42-35-AM.log

Oracle Configuration Manager check END