一.问题说明
安装环境：Oracle linux 6.1
数据库： 10.2.0.1
安装Oracle 10g的RAC,在第一个节点执行root.sh 时报错，如下：
[root@rac1 ~]# /u01/app/10.2.0/grid/root.sh
WARNING: directory '/u01/app/10.2.0' is notowned by root
WARNING: directory '/u01/app' is not ownedby root
WARNING: directory '/u01' is not owned byroot
Checking to see if Oracle CRS stack isalready configured
Setting the permissions on OCR backupdirectory
Setting up NS directories
Oracle Cluster Registry configurationupgraded successfully
WARNING: directory '/u01/app/10.2.0' is notowned by root
WARNING: directory '/u01/app' is not ownedby root
WARNING: directory '/u01' is not owned byroot
Successfully accumulated necessary OCRkeys.
Using ports: CSS=49895 CRS=49896 EVMC=49898and EVMR=49897.
node <nodenumber>: <nodename><private interconnect name> <hostname>
node 1: rac1 rac1-priv rac1
node 2: rac2 rac2-priv rac2
Creating OCR keys for user 'root', privgrp'root'..
Operation successful.
Now formatting voting device: /dev/raw/raw3
Now formatting voting device: /dev/raw/raw4
Now formatting voting device: /dev/raw/raw5
Format of 3 voting devices complete.
Startup will be queued to init within 90seconds.
Adding daemons to inittab
Expecting the CRS daemons to be up within600 seconds.
Failure at final check of Oracle CRS stack.
10
二．MOS上有篇文档说明这个问题：
2.1 文档一：
Root.sh failed at Failure at final check ofOracle CRS stack 10 [ID 725878.1]
Case
This particular case is caused by the OSinit system does not working.
" Failure at final check of Oracle CRS stack.
10"
means CRS daemon did not startup during 600 seconds period.
In the root.sh script, it adds CRS relatedentry in /etc/inittab, run "init q" and expect 3 CRS related daemonprocesses to start, eg:
init.cssd
init.crsd
init.evmd
With init system problem, none of thesedaemon processes are spawned, this causes CRS process startup failure as theyrely on the CRS daemon processes to start first.
--这里说明是init system problem 出现问题，导致进程无法启动。可以通过以下方法验证这个问题：
This can be verified by adding a simple entry in /etc/inittab:
test:2:once:/usr/bin/echo "HELLOTEST" > /tmp/test.log
run "init q" as root user. If the init is working, then there shouldbe a file /tmp/test.log generated.
Solution
--MOS上仅给出了AIX上的解决方案，如下：
Please consult with system administrator tofix initissue.
Here the solution is only valid for AIXplatform:
1. Starting the script install_assist (AIXGUI utility Installation Assistance)
2. Updating for example the date, then exit install_assist properly
3. Reboot the system
After that daemon process in /etc/inittab started, CRS installation completed.
2.2 文档二：
Clusterware Fails To Start DuringRoot.sh -- "Failure at final check of Oracle CRS stack 10" [ID329450.1]
The Oracle Clusterware runs as root, but for some operations itneed to run as the oracle user, and uses the "su -l" which invokesthe oracle user shell login/profile script. If that shell profile script hasinteractive or cpu bound operations or prompts this may affect theClusterware operation.
--这边文档说的是.bash_profile中的参数有交互性的参数，删除这些参数就可以了。
其他文档：
Troubleshooting 10g or 11.1 OracleClusterware Root.sh Problems [ID 240001.1]
三．问题分析
查看相关log：
[oracle@rac1 client]$ pwd
/u01/app/10.2.0/grid/log/rac1/client
[oracle@rac1 client]$ ls
clscfg_6337.log clsc.log css.log ocrconfig_6285.log
[oracle@rac1 client]$ tail -30 css.log
2012-07-12 23:23:15.565: [CSSCLNT][3681171200]clsssInitNative: connect failed, rc 9
2012-07-12 23:23:16.977: [CSSCLNT][3681171200]clsssInitNative: connect failed, rc 9
2012-07-12 23:23:18.390: [CSSCLNT][3681171200]clsssInitNative: connect failed, rc 9
2012-07-12 23:23:19.885: [CSSCLNT][3681171200]clsssInitNative: connect failed, rc 9
[oracle@rac1 client]$ tail -10 clsc.log
Oracle Database 10g CRS Release 10.2.0.1.0Production Copyright 1996, 2005 Oracle. All rights reserved.
2012-07-12 23:24:51.389: [default][4093163264]Terminating clsd session
2012-07-12 23:25:00.274: [default][135894784]Terminating clsd session
[oracle@rac1 client]$ tail clscfg_6337.log
Oracle Database 10g CRS Release 10.2.0.1.0Production Copyright 1996, 2005 Oracle. All rights reserved.
2012-07-12 23:12:24.477: [ CLSCFG][1566725888]clscfg: Nodelist is [rac1rac2 ]
[oracle@rac1 rac1]$ cat alertrac1.log
2012-07-12 10:06:10.703
[client(6285)]CRS-1006:The OCR location/dev/raw/raw2 is inaccessible. Details in/u01/app/10.2.0/grid/log/rac1/client/ocrconfig_6285.log.
2012-07-12 10:06:11.076
[client(6285)]CRS-1001:The OCR wasformatted using version 2.
2012-07-12 10:12:24.479
[client(6337)]CRS-1801:Cluster crsconfigured with nodes rac1 rac2 .
--在一个节点用root执行如下命令，清除OCR上的信息：
[root@rac1 ~]# sh /u01/app/10.2.0/grid/install/rootdeinstall.sh
Removing contents from OCR mirror device
2560+0 records in
2560+0 records out
10485760 bytes (10 MB) copied, 2.46509 s,4.3 MB/s
Removing contents from OCR device
2560+0 records in
2560+0 records out
10485760 bytes (10 MB) copied, 1.18886 s,8.8 MB/s
然后在运行root.sh 问题依旧。
尝试使用了如下方法：
1. 关闭防火墙
我在安装之前已经把防火墙关闭，所以这里只是检查一下。
[root@rac1 tmp]# service iptables status
iptables: Firewall is not running.
[root@rac1 tmp]# chkconfig iptables --list
iptables 0:off 1:off 2:off 3:off 4:off 5:off 6:off
2. 注释了如下文件：
[root@rac1 tmp]# cat /etc/pam.d/other
#%PAM-1.0
auth required pam_deny.so
account required pam_deny.so
password required pam_deny.so
session required pam_deny.so
3. 删除相关socket：
# rm -f /usr/tmp/.oracle/*
# rm -f /tmp/.oracle/*
# rm -f /var/tmp/.oracle/*
Unable To Connect To Cluster ManagerOra-29701 as Network Socket Files are Removed [ID 391790.1]
运行sh/u01/app/10.2.0/grid/install/rootdeinstall.sh清除后再次安装，问题依旧，可能还是兼容性的问题。
后来把OS换成Redhat 5.4，成功安装了，可能还是Oracle 10g在Oracle Linux 6上的兼容性问题，在Oracle Linux 6上，我测试过Oracle 11.2.0.3的RAC，安装没有问题。
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