彻底删除该死的rac
Oracle安装目录，包括crs等
$ORACLE_BASE
/etc/oracle
/etc/
oraInst.loc oratab
/usr/local/bin
coraenv dbhome oraenv
 
RAC 安装失败后的删除

dd if=/dev/zero of=/dev/raw/raw1 bs=1k count=3000
dd if=/dev/zero of=/dev/raw/raw2 bs=1k count=3000
dd if=/dev/zero of=/dev/raw/raw5 bs=1k count=3000
dd if=/dev/zero of=/dev/raw/raw6 bs=1k count=3000
dd if=/dev/zero of=/dev/raw/raw7 bs=1k count=3000
rm  -rf -rf /home/oracle/oracle/*
rm  -rf /etc/rc.d/rc5.d/S96init.crs
rm  -rf /etc/rc.d/init.d/init.crs
rm  -rf /etc/rc.d/rc4.d/K96init.crs
rm  -rf /etc/rc.d/rc6.d/K96init.crs
rm  -rf /etc/rc.d/rc1.d/K96init.crs
rm  -rf /etc/rc.d/rc0.d/K96init.crs
rm  -rf /etc/rc.d/rc2.d/K96init.crs
rm  -rf /etc/rc.d/rc3.d/S96init.crs
rm  -rf /etc/oracle/*
rm  -rf /etc/oraInst.loc
rm  -rf /etc/oratab
rm  -rf /usr/local/bin/coraenv
rm  -rf /usr/local/bin/dbhome
rm  -rf /usr/local/bin/oraenv
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 -f /etc/inittab.crs
mv /etc/inittab /etc/inittab_bak
cp /etc/inittab.orig /etc/inittab

原来没有清空裸设备里的信息 导致第一个节点 执行./root.sh 出错

 
[root@db1 crs]# ./root.sh
WARNING: directory '/home/oracle/oracle/product/10.2.0' is not owned by root
WARNING: directory '/home/oracle/oracle/product' is not owned by root
WARNING: directory '/home/oracle/oracle' is not owned by root
WARNING: directory '/home/oracle' is not owned by root
Checking to see if Oracle CRS stack is already configured
Setting the permissions on OCR backup directory
Setting up NS directories
Oracle Cluster Registry configuration upgraded successfully
WARNING: directory '/home/oracle/oracle/product/10.2.0' is not owned by root
WARNING: directory '/home/oracle/oracle/product' is not owned by root
WARNING: directory '/home/oracle/oracle' is not owned by root
WARNING: directory '/home/oracle' is not owned by root
clscfg: EXISTING configuration version 3 detected.
clscfg: version 3 is 10G Release 2.
assigning default hostname db1 for node 1.
assigning default hostname db2 for node 2.
Successfully accumulated necessary OCR keys.
Using ports: CSS=49895 CRS=49896 EVMC=49898 and EVMR=49897.
node <nodenumber>: <nodename> <private interconnect name> <hostname>
node 1: db1 db1-priv db1
node 2: db2 db2-priv db2
clscfg: Arguments check out successfully.
NO KEYS WERE WRITTEN. Supply -force parameter to override.
-force is destructive and will destroy any previous cluster
configuration.
Oracle Cluster Registry for cluster has already been initialized
Startup will be queued to init within 90 seconds.
Adding daemons to inittab
Expecting the CRS daemons to be up within 600 seconds.
CSS is active on these nodes.
        db1
        db2
CSS is active on all nodes.
Waiting for the Oracle CRSD and EVMD to start
Waiting for the Oracle CRSD and EVMD to start
Waiting for the Oracle CRSD and EVMD to start
Waiting for the Oracle CRSD and EVMD to start
Waiting for the Oracle CRSD and EVMD to start
Waiting for the Oracle CRSD and EVMD to start
Waiting for the Oracle CRSD and EVMD to start
Waiting for the Oracle CRSD and EVMD to start
Waiting for the Oracle CRSD and EVMD to start
Waiting for the Oracle CRSD and EVMD to start
Waiting for the Oracle CRSD and EVMD to start
Timed out waiting for the CRS stack to start.