Remove Oralce Clusterware after Failed Installation

This is what oracle says how to remove the CRS after a failed
CRS installation:-


How to Clean Up After a Failed 10g or 11.1 Oracle Clusterware Installation.

Applies to: 
Oracle Server - Enterprise Edition - Version: 10.1.0.2 to 11.1.0.8 - Release: 10.1 to 11.1

Generic UNIX

Purpose
The purpose of this document is to help DBA's and support analysts understand how
to clean up a failed CRS (Cluster Ready Services) install for 10g and 11.1 RAC.

For 11.2, see Note: 942166.1 How to Proceed from Failed 11gR2 Grid Infrastructure CRS) Installation

Scope and Application

DBA's and Support Analysts
How to Clean Up After a Failed 10g or 11.1 Oracle Clusterware Installation
10g and 11.1 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 on any nodes you are removing CRS from. Running 
these scripts should be sufficent to clean up your CRS install. Rootdelete.sh 
accepts options like nosharedvar/sharedvar, and nosharedhome/sharedhome. Make
yourself familiar with these options by reading the Oracle Clusterware and 
Oracle Real Application Clusters Administration and Deployment Guide.
If you have any problems with these scripts please open a service request. 

If for some reason you have to manually remove the install due to problems
with 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 following
as root:

Sun:

rm /etc/init.d/init.cssd 
rm /etc/init.d/init.crs 
rm /etc/init.d/init.crsd 
rm /etc/init.d/init.evmd 
rm /etc/rc3.d/K96init.crs
rm /etc/rc3.d/S96init.crs
rm -Rf /var/opt/oracle/scls_scr 
rm -Rf /var/opt/oracle/oprocd
rm /etc/inittab.crs 
cp /etc/inittab.orig /etc/inittab

Linux:

rm /etc/oracle/*
rm -f /etc/init.d/init.cssd 
rm -f /etc/init.d/init.crs 
rm -f /etc/init.d/init.crsd 
rm -f /etc/init.d/init.evmd 
rm -f /etc/rc2.d/K96init.crs
rm -f /etc/rc2.d/S96init.crs
rm -f /etc/rc3.d/K96init.crs
rm -f /etc/rc3.d/S96init.crs
rm -f /etc/rc5.d/K96init.crs
rm -f /etc/rc5.d/S96init.crs
rm -Rf /etc/oracle/scls_scr
rm -f /etc/inittab.crs 
cp /etc/inittab.orig /etc/inittab

HP-UX:

rm /sbin/init.d/init.cssd 
rm /sbin/init.d/init.crs 
rm /sbin/init.d/init.crsd 
rm /sbin/init.d/init.evmd 
rm /sbin/rc2.d/K960init.crs
rm /sbin/rc2.d/K001init.crs
rm /sbin/rc3.d/K960init.crs
rm /sbin/rc3.d/S960init.crs
rm -Rf /var/opt/oracle/scls_scr 
rm -Rf /var/opt/oracle/oprocd
rm /etc/inittab.crs 
cp /etc/inittab.orig /etc/inittab

HP Tru64:

rm /sbin/init.d/init.cssd 
rm /sbin/init.d/init.crs 
rm /sbin/init.d/init.crsd 
rm /sbin/init.d/init.evmd 
rm /sbin/rc3.d/K96init.crs
rm /sbin/rc3.d/S96init.crs
rm -Rf /var/opt/oracle/scls_scr 
rm -Rf /var/opt/oracle/oprocd
rm /etc/inittab.crs 
cp /etc/inittab.orig /etc/inittab

IBM AIX:

rm /etc/init.cssd 
rm /etc/init.crs 
rm /etc/init.crsd 
rm /etc/init.evmd 
rm /etc/rc.d/rc2.d/K96init.crs
rm /etc/rc.d/rc2.d/S96init.crs
rm -Rf /etc/oracle/scls_scr
rm -Rf /etc/oracle/oprocd
rm /etc/inittab.crs 
cp /etc/inittab.orig /etc/inittab

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

ps -ef | grep crs 
kill 
ps -ef | grep evm
kill 
ps -ef | grep css 
kill 

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.loc 
Usually 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.



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=1M count=256
dd if=/dev/zero of=/dev/rdsk/ocrV1064_100m.ora bs=1M count=256

See the Clusterware Installation Guide for sizing requirements... 

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 if 
they have already been used.



10. The /tmp/CVU* dir should be cleaned also to avoid the cluvfy misreporting.

11. It is good practice to reboot the node before starting the next install.

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



References
NOTE:942166.1 - How to Proceed from Failed 11gR2 Grid Infrastructure (CRS) Installation