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how to remove crs after a failed instllationSubject: 10g RAC: How to Clean Up After a Failed CRS InstallDoc ID: Note:239998.1 Type: BULLETINLast Revision Date: 07-DEC-2006 Status: PUBLISHED

PURPOSE-------

The purpose of this document is to help DBA's and support analysts understand howto clean up a failed CRS (Cluster Ready Services) install for 10g RAC.

SCOPE & APPLICATION-------------------

DBA's and Support Analysts

10g RAC: How to Clean Up After a Failed CRS Install---------------------------------------------------

Not cleaning up a failed CRS install can cause problems like node reboots.

Follow these steps to clean up a failed CRS install:

1. Run the rootdelete.sh script then the rootdeinstall.sh script from the$ORA_CRS_HOME/install directory. Running these scripts should be sufficentto clean up your CRS install. If you have any problems with these scriptsplease open a service request.

If for some reason you have to manually remove the install due to problemswith the scripts, continue to step 2:

2. Stop the Nodeapps on all nodes:

srvctl stop nodeapps -n

3. Prevent CRS from starting when the node boots. To do this issue the followingas root:

m /etc/oracle/*rm -f /etc/init.d/init.cssdrm -f /etc/init.d/init.crsrm -f /etc/init.d/init.crsdrm -f /etc/init.d/init.evmdrm -f /etc/rc2.d/K96init.crsrm -f /etc/rc2.d/S96init.crsrm -f /etc/rc3.d/K96init.crsrm -f /etc/rc3.d/S96init.crs

rm -f /etc/rc5.d/K96init.crsrm -f /etc/rc5.d/S96init.crsrm -Rf /etc/oracle/scls_scrrm -f /etc/inittab.crscp /etc/inittab.orig /etc/inittab

4. If they are not already down, kill off EVM, CRS, and CSS processes or rebootthe node:

ps -ef | grep crs

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killps -ef | grep evmkillps -ef | grep csskill

Do not kill any OS processes, for example icssvr_daemon process !

5. If there is no other Oracle software running (like listeners, DB's, etc...),you can remove the files in /var/tmp/.oracle or /tmp/.oracle. Example:

rm -f /var/tmp/.oracle

or

rm -f /tmp/.oracle

6. Remove the ocr.locUsually the ocr.loc can be found at /etc/oracle

7. De-install the CRS home in the Oracle Universal Installer

8. Remove the CRS install location:

rm -Rf /*

9. Clean out the OCR and Voting Files with dd commands. Example:

dd if=/dev/zero of=/dev/rdsk/V1064_vote_01_20m.dbf bs=8192 count=2560dd if=/dev/zero of=/dev/rdsk/ocrV1064_100m.ora bs=8192 count=12800

If you placed the OCR and voting disk on a shared filesystem, remove them.

If you are removing the RDBMS installation, also clean out any ASM disks ifthey have already been used.

10.If you would like to re-install CRS, follow the steps in the RAC Installation

manual.

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