1、切换到oracle用户
进入$ORACLE_HOME
dg<*phydb*/u01/product/oracle/11.2.0/db_1/deinstall>$pwd
/u01/product/oracle/11.2.0/db_1/deinstall
dg<*phydb*/u01/product/oracle/11.2.0/db_1/deinstall>$./deinstall
Checking for required files andbootstrapping ...
Please wait ...
Location of logs /u01/oraInventory/logs/
############ ORACLE DEINSTALL &DECONFIG TOOL START ############
######################## CHECK OPERATIONSTART ########################
Install check configuration START
Specify a valid location of central inventoryfor the Oracle home '/u01/product/oracle/11.2.0/db_1' that you want tode-install:/u01/oraInventory
Checking for existence of the Oracle homelocation /u01/product/oracle/11.2.0/db_1
Oracle Home type selected for de-installis: SIDB
Oracle Base selected for de-install is:/u01/product/oracle
Checking for existence of central inventorylocation /u01/oraInventory
Install check configuration END
Network Configuration check config START
Network de-configuration trace filelocation: /u01/oraInventory/logs/netdc_check4958584024441338327.log
Network Configuration check config END
Database Check Configuration START
Database de-configuration trace filelocation: /u01/oraInventory/logs/databasedc_check4107510055642147133.log
Use comma as separator when specifying listof values as input
Specify the list of database names that areconfigured in this Oracle home []:
Database Check Configuration END
Enterprise Manager Configuration AssistantSTART
EMCA de-configuration trace file location:/u01/oraInventory/logs/emcadc_check.log
Enterprise Manager Configuration AssistantEND
Oracle Configuration Manager check START
OCM check log file location :/u01/oraInventory/logs//ocm_check9309.log
Oracle Configuration Manager check END
######################### CHECK OPERATIONEND #########################
####################### CHECK OPERATIONSUMMARY #######################
Oracle Home selected for de-install is:/u01/product/oracle/11.2.0/db_1
Inventory Location where the Oracle homeregistered is: /u01/oraInventory
No Enterprise Manager configuration to beupdated for any database(s)
No Enterprise Manager ASM targets to update
No Enterprise Manager listener targets tomigrate
Checking the config status for CCR
Oracle Home exists with CCR directory, butCCR 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:'/u01/oraInventory/logs/deinstall_deconfig2014-09-13_09-27-51-PM.out'
Any error messages from this session willbe written to:'/u01/oraInventory/logs/deinstall_deconfig2014-09-13_09-27-51-PM.err'
######################## CLEAN OPERATIONSTART ########################
Enterprise Manager Configuration AssistantSTART
EMCA de-configuration trace file location:/u01/oraInventory/logs/emcadc_clean.log
Updating Enterprise Manager ASM targets (ifany)
Updating Enterprise Manager listenertargets (if any)
Enterprise Manager Configuration AssistantEND
Database de-configuration trace filelocation: /u01/oraInventory/logs/databasedc_clean7586758450062900489.log
Network Configuration clean config START
Network de-configuration trace filelocation: /u01/oraInventory/logs/netdc_clean1621651971831489725.log
De-configuring Local Net Service Namesconfiguration file...
Local Net Service Names configuration filede-configured successfully.
De-configuring backup files...
Backup files de-configured successfully.
The network configuration has been cleanedup successfully.
Network Configuration clean config END
Oracle Configuration Manager clean START
OCM clean log file location :/u01/oraInventory/logs//ocm_clean9309.log
Oracle Configuration Manager clean END
Oracle Universal Installer clean START
Detach Oracle home'/u01/product/oracle/11.2.0/db_1' from the central inventory on the local node: Done
Delete directory'/u01/product/oracle/11.2.0/db_1' on the local node : Done
The Oracle Base directory'/u01/product/oracle' will not be removed on local node. The directory is notempty.
Oracle Universal Installer cleanup wassuccessful.
Oracle Universal Installer clean END
Oracle install clean START
Clean install operation removing temporarydirectory '/tmp/install' on node 'dg'
Oracle install clean END
Moved default properties file/tmp/deinstall2014-09-13_09-26-52-PM/response/deinstall_OraDb11g_home1.rsp as/tmp/deinstall2014-09-13_09-26-52-PM/response/deinstall_OraDb11g_home1.rsp0
######################### CLEAN OPERATIONEND #########################
####################### CLEAN OPERATIONSUMMARY #######################
Cleaning the config for CCR
As CCR is not configured, so skipping thecleaning of CCR configuration
CCR clean is finished
Successfully detached Oracle home'/u01/product/oracle/11.2.0/db_1' from the central inventory on the local node.
Successfully deleted directory'/u01/product/oracle/11.2.0/db_1' on the local node.
Oracle Universal Installer cleanup wassuccessful.
Oracle install successfully cleaned up thetemporary directories.
#######################################################################
############# ORACLE DEINSTALL &DECONFIG TOOL END #############
dg<*phydb*/u01/product/oracle/11.2.0/db_1/deinstall>$
2、手动清除余留目录
dg<*phydb*/u01/product/oracle>$ll
total 18252
-rw-r--r-- 1 oracle oinstall 18661376 Sep 13 06:33 control01.ctl
dg<*phydb*/u01/product/oracle>$pwd
/u01/product/oracle
[root@dg u01]# rm -rf product/
3、切换到grid用户
切换到主目录
[grid@dg deinstall]$ pwd
/u01/gridhome/deinstall
[grid@dg deinstall]$ ll
total 88
-rwxr-xr-x 1 grid oinstall 20658 Sep 12 01:05 deinstall*
-rwxr-xr-x 1 grid oinstall 3154 Jul 13 2009 deinstall.xml*
drwxr-xr-x 2 grid oinstall 4096 Sep 12 01:02 jlib/
drwxr-xr-x 2 grid oinstall 4096 Sep 12 01:02 response/
-rwxr-xr-x 1 grid oinstall 31544 Mar 31 2009 sshUserSetup.sh*
[grid@dg deinstall]$ ./deinstall
Checking for required files and bootstrapping ...
Please wait ...
Location of logs /tmp/deinstall2014-09-13_09-51-54-PM/logs/
############ ORACLE DEINSTALL & DECONFIG TOOL START ############
######################## CHECK OPERATION START ########################
Install check configuration START
Checking for existence of the Oracle home location /u01/gridhome
Oracle Home type selected for de-install is: SIHA
Oracle Base selected for de-install is: /u01/gridbase
Checking for existence of central inventory location /u01/oraInventory
Checking for existence of the Oracle Grid Infrastructure home
Install check configuration END
Traces log file: /tmp/deinstall2014-09-13_09-51-54-PM/logs//crsdc.log
Network Configuration check config START
Network de-configuration trace file location: /tmp/deinstall2014-09-13_09-51-54-PM/logs/netdc_check5525246341005381654.log
Specify all Oracle Restart enabled listeners that are to be de-configured [LISTENER]:
Network Configuration check config END
Asm Check Configuration START
ASM de-configuration trace file location: /tmp/deinstall2014-09-13_09-51-54-PM/logs/asmcadc_check8564644702637227603.log
Specify the ASM Diagnostic Destination [ ]: /u01/gridhome
Specify the diskgroups that are managed by this ASM instance []: GRIDDG
De-configuring ASM will drop all the diskgroups at cleanup time. Do you want deconfig tool to drop the diskgroups y|n [y]: y
######################### CHECK OPERATION END #########################
####################### CHECK OPERATION SUMMARY #######################
Oracle Grid Infrastructure Home is:
The cluster node(s) on which the Oracle home exists are: (Please input nodes seperated by ",", eg: node1,node2,...)null
Oracle Home selected for de-install is: /u01/gridhome
Inventory Location where the Oracle home registered is: /u01/oraInventory
Following Oracle Restart enabled listener(s) will be de-configured: LISTENER
ASM instance will be de-configured from this Oracle home
Do you want to continue (y - yes, n - no)? [n]: y
A log of this session will be written to: '/tmp/deinstall2014-09-13_09-51-54-PM/logs/deinstall_deconfig2014-09-13_09-52-40-PM.out'
Any error messages from this session will be written to: '/tmp/deinstall2014-09-13_09-51-54-PM/logs/deinstall_deconfig2014-09-13_09-52-40-PM.err'
######################## CLEAN OPERATION START ########################
ASM de-configuration trace file location: /tmp/deinstall2014-09-13_09-51-54-PM/logs/asmcadc_clean6191594684859328271.log
ASM Clean Configuration START
ASM deletion in progress. This operation may take few minutes.
ASM Clean Configuration END
Network Configuration clean config START
Network de-configuration trace file location: /tmp/deinstall2014-09-13_09-51-54-PM/logs/netdc_clean9104757993242154363.log
De-configuring Oracle Restart enabled listener(s): LISTENER
De-configuring listener: LISTENER
Stopping listener: LISTENER
Warning: Failed to stop listener. Listener may not be running.
Deleting listener: LISTENER
Listener deleted successfully.
Listener de-configured successfully.
De-configuring Listener configuration file...
Listener configuration file de-configured successfully.
De-configuring Naming Methods configuration file...
Naming Methods configuration file de-configured successfully.
De-configuring backup files...
Backup files de-configured successfully.
The network configuration has been cleaned up successfully.
Network Configuration clean config END
Oracle Universal Installer clean START
Detach Oracle home '/u01/gridhome' from the central inventory on the local node : Done
Delete directory '/u01/gridhome' on the local node : Done
Delete directory '/u01/oraInventory' on the local node : Done
Delete directory '/u01/gridbase' on the local node : Done
Oracle Universal Installer cleanup was successful.
Oracle Universal Installer clean END
Oracle install clean START
Clean install operation removing temporary directory '/tmp/install' on node 'dg'
Oracle install clean END
######################### CLEAN OPERATION END #########################
####################### CLEAN OPERATION SUMMARY #######################
ASM instance was de-configured successfully from the Oracle home
Following Oracle Restart enabled listener(s) were de-configured successfully: LISTENER
Oracle Restart is stopped and de-configured successfully.
Successfully detached Oracle home '/u01/gridhome' from the central inventory on the local node.
Successfully deleted directory '/u01/gridhome' on the local node.
Successfully deleted directory '/u01/oraInventory' on the local node.
Successfully deleted directory '/u01/gridbase' on the local node.
Oracle Universal Installer cleanup was successful.
Run 'rm -rf /etc/oraInst.loc' as root on node(s) 'dg' at the end of the session.
Oracle install successfully cleaned up the temporary directories.
#######################################################################
############# ORACLE DEINSTALL & DECONFIG TOOL END #############
[grid@dg deinstall]$
4、手动清除余留
[root@dg /]# rm -rf /etc/oraInst.loc
[root@dg /]#
注意：
如果卸载grid时遇到如下问题：
ERROR: The deconfiguration and deinstallation tool has detected runtime errors when checking the existing configuration due to which the tool cannot continue with clean up operation. Please check the log files for more information. Rerun the tool after fixing the errors to proceed with the ORACLE_HOME clean up.
方法：
使用root用户登录在所有节点上注意运行"$ORA_CRS_HOME/crs/install/rootcrs.pl -verbose -deconfig -force"的命令，注意在最后一个节点不要运行该命令。举例来说如果你有2个节点的话，就只要在一个节点上运行上述命令即可,然后再最后的节点执行"$ORA_CRS_HOME/crs/install/rootcrs.pl -verbose -deconfig -force -lastnode" 命令。如果只是单实例，那么只运行"$ORA_CRS_HOME/crs/install/rootcrs.pl -verbose -deconfig -force -lastnode"即可。
参考：
