在第二个节点执行root.sh时出现问题

Creating /etc/oratab file...
Entries will be added to the /etc/oratab file as needed by
Database Configuration Assistant when a database is created
Finished running generic part of root.sh script.
Now product-specific root actions will be performed.
2011-12-08 01:38:46: Parsing the host name
2011-12-08 01:38:46: Checking for super user privileges
2011-12-08 01:38:46: User has super user privileges
Using configuration parameter file: /u01/app/11.2.0/grid/crs/install/crsconfig_params
Creating trace directory
LOCAL ADD MODE
Creating OCR keys for user 'root', privgrp 'root'..
Operation successful.
Adding daemon to inittab
CRS-4123: Oracle High Availability Services has been started.
ohasd is starting
ADVM/ACFS is not supported on centos-release-4-8

CRS-4402: The CSS daemon was started in exclusive mode but found an active CSS daemon on node rac1, number 1, and is terminating
An active cluster was found during exclusive startup, restarting to join the cluster
CRS-2672: Attempting to start 'ora.mdnsd' on 'rac2'
CRS-2676: Start of 'ora.mdnsd' on 'rac2' succeeded
CRS-2672: Attempting to start 'ora.gipcd' on 'rac2'
CRS-2676: Start of 'ora.gipcd' on 'rac2' succeeded
CRS-2672: Attempting to start 'ora.gpnpd' on 'rac2'
CRS-2676: Start of 'ora.gpnpd' on 'rac2' succeeded
CRS-2672: Attempting to start 'ora.cssdmonitor' on 'rac2'
CRS-2676: Start of 'ora.cssdmonitor' on 'rac2' succeeded
CRS-2672: Attempting to start 'ora.cssd' on 'rac2'
CRS-2672: Attempting to start 'ora.diskmon' on 'rac2'
CRS-2676: Start of 'ora.diskmon' on 'rac2' succeeded
CRS-2674: Start of 'ora.cssd' on 'rac2' failed
CRS-2679: Attempting to clean 'ora.cssd' on 'rac2'
CRS-2681: Clean of 'ora.cssd' on 'rac2' succeeded
CRS-2673: Attempting to stop 'ora.diskmon' on 'rac2'
CRS-2675: Stop of 'ora.diskmon' on 'rac2' failed
CRS-2679: Attempting to clean 'ora.diskmon' on 'rac2'
CRS-2681: Clean of 'ora.diskmon' on 'rac2' succeeded
CRS-4000: Command Start failed, or completed with errors.
CRS-2672: Attempting to start 'ora.cssd' on 'rac2'
CRS-2672: Attempting to start 'ora.diskmon' on 'rac2'
CRS-2676: Start of 'ora.cssd' on 'rac2' succeeded
CRS-2674: Start of 'ora.diskmon' on 'rac2' failed
CRS-2679: Attempting to clean 'ora.diskmon' on 'rac2'
CRS-5016: Process "/u01/app/11.2.0/grid/bin/diskmon" spawned by agent "/u01/app/11.2.0/grid/bin/orarootagent.bin" for action "clean" failed: details at "(:CLSN00010:)" in "/u01/app/11.2.0/grid/log/rac2/agent/ohasd/orarootagent_root/orarootagent_root.log"
CRS-2681: Clean of 'ora.diskmon' on 'rac2' succeeded
CRS-2672: Attempting to start 'ora.ctssd' on 'rac2'
CRS-2674: Start of 'ora.ctssd' on 'rac2' failed
CRS-4000: Command Start failed, or completed with errors.
Command return code of 1 (256) from command: /u01/app/11.2.0/grid/bin/crsctl start resource ora.ctssd -init -env USR_ORA_ENV=CTSS_REBOOT=TRUE
Start of resource "ora.ctssd -init -env USR_ORA_ENV=CTSS_REBOOT=TRUE" failed
Failed to start CTSS
Failed to start Oracle Clusterware stack

吸取别人的经验找到是共享存储的权限问题，解决办法如下：
[root@rac2 ~]# cd /dev/mapper/
[root@rac2 mapper]# ll
total 0
crw-------  1 root root 10, 63 Dec  7 15:09 control

执行脚本改变权限
[root@rac2 mapper]# sh /etc/rc.d/rc.local
[root@rac2 mapper]# cat /etc/rc.d/rc.local
#!/bin/sh
#
# This script. will be executed *after* all the other init scripts.
# You can put your own initialization stuff in here if you don't
# want to do the full Sys V style. init stuff.

touch /var/lock/subsys/local

modprobe hangcheck-timer

删除节点上的信息，再执行root.sh 命令。 不然会报错。

[root@rac2 mapper]# /u01/app/11.2.0/grid/crs/install/roothas.pl -delete -force -verbose

在重新执行root.sh一切正常