How to Clean Up After a Failed 10g or 11.1 Oracle CRS(Clusterware Installation)

1. Runing  following  scripts  from any nodes   should be sufficent to clean up your CRS install
   
   $CRS_HOME/install/rootdelete.sh
   $CRS_HOME/install/rootdeinstall.sh
   
   Rootdelete.sh accepts options like nosharedvar/sharedvar, and nosharedhome/sharedhome.
   
   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 (e.x santaro,pandora )
   srvctl stop nodeapps -n  santarosrvctl stop nodeapps -n pandora
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
   ps -ef|grep  evm
   ps -eaf|grep  css
   
   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.
   rm -rf /*
9. Clean out the OCR and Voting Files with dd commands
   
   for i in 1 2
   
   do
     dd if=/dev/zero of=/dev/ocrdisk$i bs=8192 count=25000
   done
   
   for i in 1 2 3
   do
     dd if=/dev/zero of=/dev/votedisk$i bs=8192 count=25000
   done
   
   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.
    rm -rf  /tmp/CVU*
11. reboot the node before starting the next install.