操作系统版本是Solaris 10，安装完11.2的grid之后，安装11g的RAC database没有问题。但是在安装10g RAC database的时候，进度条到50%，总是报OUI-35000 Fatal Cluster Error的错误。
此时Banner已经disable。
用ssh node1 date和ssh node2 date检查各个节点的互信，都没有问题。但是用下面的命令检查却报错互信有问题。
./runcluvfy.sh stage -pre crsinst -n node1,node2
而根据OUI-35000 Fatal Cluster Error Encountered (Doc ID 752217.1)，设置权限/etc/services to 644并不适合solaris环境，在solaris环境中，这个文件的权限是444，但是按照文档设置成644，甚至777，都还是报错OUI-35000。
我们去找找OUI的log。这个log所在的目录，需要根据central inventory目录:
server01:inst01 > cat /var/opt/oracle/oraInst.loc
inventory_loc=/oracle_grid/app/oraInventory
inst_group=oinstall
server01:inst01 >
找到/oracle_grid/app/oraInventory目录，在/oracle_grid/app/oraInventory/logs中，可以看到：
ls –l
……
-rw-r----- 1 op11g oinstall 0 Feb 16 10:58 oraInstall2016-02-16_10-58-08AM.err
-rw-r----- 1 op11g oinstall 33151 Feb 16 11:01 installActions2016-02-16_10-58-08AM.log
-rw-r----- 1 op11g oinstall 0 Feb 16 11:18 oraInstall2016-02-16_11-18-04AM.out
-rw-r----- 1 op11g oinstall 0 Feb 16 11:18 oraInstall2016-02-16_11-18-04AM.err
-rw-r----- 1 op11g oinstall 33246 Feb 16 11:21 installActions2016-02-16_11-18-04AM.log <<<<<<<<<<安装失败的这个日志
……
server01:inst01 > vi installActions2016-02-16_11-18-04AM.log
……
INFO: Setting the PROD_HOME variable of 'oracle.swd.oui.core_10.2.0.1.0' to '/myop/app/oracle/rdbms/10g/10.2.0.5.6/oui'. Received the value from the variable calculation.
INFO: Performing operation for OUI Oracle Home access setup
INFO: Unable to read /myop/app/oracle/rdbms/10g/10.2.0.5.6/inventory/ContentsXML/comps.xml. Some inventory information may be lost.
INFO: SRVM ClusterInfo.IsLocalOnly() called. Return value obtained is 'true'.
INFO: The CRS clusterware location for 'oracle.crs 10.1.0.2.0' is '/oracle_grid/11.2.0/grid'.
INFO: CRS clusterware detected.
INFO: Cluster system is detected by the clusterware.
INFO: Node selection page will be shown for a new home on the cluster system.
INFO: The cluster node list 'server01,server02' is derived from the clusterware stack.
INFO: Local node 'server01' is derived from the clusterware stack.
INFO: Setting variable 'LOCAL_NODE' to 'server01'. Received the value from a code block.
SEVERE: oracle.ops.mgmt.cluster.SharedDeviceException: PRKC-1044 : Failed to check remote command execution setup for node server02 using shells /usr/local/bin/ssh and /usr/bin/rsh
File "/usr/local/bin/ssh" does not exist on node "server02" <<<<<<注意这里，显示了报错的原因
server02: Connection refused
at oracle.ops.mgmt.nativesystem.UnixSystem.testCFSFile(UnixSystem.java:1451)
at oracle.ops.mgmt.nativesystem.UnixSystem.isSharedPath(UnixSystem.java:1409)
at oracle.ops.mgmt.cluster.Cluster.isSharedPath(Cluster.java:916)
at oracle.sysman.oii.oiip.oiipg.OiipgCFSDriveCheck.isSharedPath(OiipgCFSDriveCheck.java:722)
at oracle.sysman.oii.oiip.oiipg.OiipgCFSDriveCheck.isDriveOnCFS(OiipgCFSDriveCheck.java:500)
at oracle.sysman.oii.oiif.oiifw.OiifwNodeSelWCDE.initialize(OiifwNodeSelWCDE.java:290)
at oracle.sysman.oii.oiif.oiifb.OiifbCondIterator.iterate(OiifbCondIterator.java:152)
at oracle.sysman.oii.oiic.OiicDepWizEngine.doOperation(OiicDepWizEngine.java:424)
at oracle.sysman.oii.oiif.oiifb.OiifbCondIterator.iterate(OiifbCondIterator.java:171)
at oracle.sysman.oii.oiic.OiicPullSession.doOperation(OiicPullSession.java:1273)
at oracle.sysman.oii.oiic.OiicSessionWrapper.doOperation(OiicSessionWrapper.java:289)
at oracle.sysman.oii.oiic.OiicInstaller.run(OiicInstaller.java:546)
at oracle.sysman.oii.oiic.OiicInstaller.runInstaller(OiicInstaller.java:929)
at oracle.sysman.oii.oiic.OiicInstaller.main(OiicInstaller.java:866)
SEVERE: oracle.ops.mgmt.cluster.SharedDeviceException: PRKC-1044 : Failed to check remote command execution setup for node server02 using shells /usr/local/bin/ssh and /usr/bin/rsh
File "/usr/local/bin/ssh" does not exist on node "server02" <<<<<<注意这里，显示了报错的原因
server02: Connection refused
at oracle.ops.mgmt.nativesystem.UnixSystem.testCFSFile(UnixSystem.java:1451)
at oracle.ops.mgmt.nativesystem.UnixSystem.isSharedPath(UnixSystem.java:1409)
at oracle.ops.mgmt.cluster.Cluster.isSharedPath(Cluster.java:916)
at oracle.sysman.oii.oiip.oiipg.OiipgCFSDriveCheck.isSharedPath(OiipgCFSDriveCheck.java:722)
at oracle.sysman.oii.oiip.oiipg.OiipgCFSDriveCheck.isDriveOnCFS(OiipgCFSDriveCheck.java:507)
at oracle.sysman.oii.oiif.oiifw.OiifwNodeSelWCDE.initialize(OiifwNodeSelWCDE.java:290)
at oracle.sysman.oii.oiif.oiifb.OiifbCondIterator.iterate(OiifbCondIterator.java:152)
at oracle.sysman.oii.oiic.OiicDepWizEngine.doOperation(OiicDepWizEngine.java:424)
at oracle.sysman.oii.oiif.oiifb.OiifbCondIterator.iterate(OiifbCondIterator.java:171)
at oracle.sysman.oii.oiic.OiicPullSession.doOperation(OiicPullSession.java:1273)
at oracle.sysman.oii.oiic.OiicSessionWrapper.doOperation(OiicSessionWrapper.java:289)
at oracle.sysman.oii.oiic.OiicInstaller.run(OiicInstaller.java:546)
at oracle.sysman.oii.oiic.OiicInstaller.runInstaller(OiicInstaller.java:929)
at oracle.sysman.oii.oiic.OiicInstaller.main(OiicInstaller.java:866)
INFO: Setting variable 'REMOTE_NODES' to 'server01,'. Received the value from a code block.
INFO: isRollingUpgradeEnabled():false
INFO: Setting the 'ClusterInstallDescription' property to 'Select nodes (in addition to the local node) in the hardware cluster where the installer should install products that y
ou select in this installation.'.
INFO: Setting the 'SingleInstanceDescription' property to 'Select this option if you want to perform a single node non-cluster installation even though the local node is part of
a hardware cluster.'.
INFO: Setting the 'InvalidNodes' property to 'null'.
INFO: Setting the 'AllowRemoteNodeSelection' property to 'true'.
INFO: Setting the 'ShowCRSSoftwareVersion' property to 'false'.
INFO: Setting the 'NewHome' property to 'true'.
INFO: Setting the 'ClusterNodes ( CLUSTER_NODES )' property to 'server01,server02,'. Received the value from the UI page.
INFO: Setting the 'LocalNode ( LOCAL_NODE )' property to 'server01'. Received the value from the UI page.
INFO: Setting the 'RemoteNodes ( REMOTE_NODES )' property to 'server02,'. Received the value from the UI page.
INFO: Performing tests to see whether nodes server02 are available
INFO: Validating nodes server02...
INFO: Checking if nodes are alive...
INFO: Validating user equivalence...
SEVERE: OUI-35000: Fatal cluster error encountered (). Correct the problem and try the operation again. <<<<<< 最终，报错OUI-35000
INFO: User Selected: Yes/OK
WARNING: Do you really want to exit?
INFO: User Selected: Yes/OK
所以问题就是在server01上启动OUI安装的时候，会去到server02上调用/usr/local/bin/ssh，而这个文件不存在，所以在OUI中报错了。
解决方法：
ln -s /bin/ssh /usr/local/bin/ssh