11gR2 RAC在AIX平台安装报0509-150 Dependent module libskgxn2.so could not be loaded

      今天有个朋友在AIX平台下面安装11.2.0.2 RAC，AIX系统的版本是61000604,使用了HACMP 6.1双机软件。

     在安装cluster的时候，在2节点执行root.sh的时候报下面的错误：

# /oracle/app/11.2.0/grid/root.sh
Running Oracle 11g root script...

The following environment variables are set as:
ORACLE_OWNER= grid
ORACLE_HOME= /oracle/app/11.2.0/grid

Enter the full pathname of the local bin directory: [/usr/local/bin]:
Copying dbhome to /usr/local/bin ...
Copying oraenv to /usr/local/bin ...
Copying coraenv to /usr/local/bin ...

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 script.
Now product-specific root actions will be performed.
Using configuration parameter file: /oracle/app/11.2.0/grid/crs/install/crsconfig_params
Creating trace directory
User grid has the required capabilities to run CSSD in realtime mode
exec(): 0509-036 Cannot load program /oracle/app/11.2.0/grid/bin/ocrconfig.bin because of the following errors:
0509-150 Dependent module libskgxn2.so could not be loaded.
0509-022 Cannot load module libskgxn2.so.
0509-026 System error: A file or directory in the path name does not exist.
Failed to create or upgrade OLR
Failed to create or upgrade OLR at /oracle/app/11.2.0/grid/crs/install/crsconfig_lib.pm line 6744.
/oracle/app/11.2.0/grid/perl/bin/perl -I/oracle/app/11.2.0/grid/perl/lib -I/oracle/app/11.2.0/grid/crs/install /oracle/app/11.2.0/grid/crs/install/rootcrs.pl execution failed

  当时分析原因如下：

1，有部分的包没有安装

2，没有执行rootpre.sh或者没有把grid用户增加到HA的组中。

  在朋友那里了解情况后，是因为他在安装的时候只在1节点上面执行了rootpre.sh，没有在2节点上面执行。

  解决方案：

  在2节点上面执行rootpre.sh脚本，增加按照提示，把grid用户增加到ha组中，

删除后root.sh配置的信息，再次执行root.sh，一切正常。