During the installation of Grid Infrastructure Clusterware 12.1.0.2 on OEL 6.6 root.sh failed with the following error:

[root]# /u01/12.1.0/grid/root.sh 
Performing root user operation. 

The following environment variables are set as: 
ORACLE_OWNER= grid 
ORACLE_HOME= /u01/12.1.0/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: /u01/12.1.0/grid/crs/install/crsconfig_params 
/u01/12.1.0/grid/bin/crsctl query crs releaseversion … failed rc=1 with message: 
/u01/12.1.0/grid/bin/crsctl: line 307: /u01/12.1.0/grid/bin/crsctl.bin: Success 

Failed to create keys in the OLR, rc = 1, Message: 
/u01/12.1.0/grid/bin/clscfg: line 307: /u01/12.1.0/grid/bin/clscfg.bin: Success 

Died at /u01/12.1.0/grid/crs/install/crsutils.pm line 7705. 
The command ‘/u01/12.1.0/grid/perl/bin/perl -I/u01/12.1.0/grid/perl/lib -I/u01/12.1.0/grid/crs/install /u01/12.1.0/grid/crs/install/rootcrs.pl ‘ execution failed 

Analysis:
At the first glance, I thought there is a problem with writing to the ASM disk group where the OCR will be created, after a long analysis and research, I finally figured out that the Grid binary source files where I’m installing the Clusterware from are missing some files!

Fix:
I re-downloaded the Grid Infrastructure source binaries and managed to install the Grid Infrastructure successfully.

Reference: Doc ID 1909073.1