Oracle 12c RAC Installation issue on Red Hat 6

Here are a couple of issues I found with installing Oracle 12c RAC

Once all the  checks are complete run runcluvfy to ensure components are installed.

During an install of Oracle 12cR1 RAC Grid Infrastructure on Red Hat or CentOS 6.2, 6.3 or 6.4, you run the runcluvfy.sh script to test node readiness and it fails with the following error:

ERROR: 

Reference data is not available for verifying prerequisites on this operating system distribution

Verification cannot proceed

This is due to bug 15973656 which states that runcluvfy.sh cannot properly detect the Red Hat 6.2 and above operating system. The problem also affects CentOS 6.2 and above.

Source - https://gruffdba.wordpress.com/2013/07/06/oracle-12c-rac-runcluvfy-sh-error-prerequisites-on-this-operating-system-distribution/#more-966

Download and install on both nodes - redhat-release-6Server-1.x86_64.rpm

Run runcluvfy to ensure the install has the prerequisite.


 Installing ASM

I used a mixture of yum and rpm’s.  The rpm’s can be downloaded from:

http://www.oracle.com/technetwork/server-storage/linux/asmlib/ol6-1709075.html

Setup the repository:

cd /etc/yum.repos.d

 wget http://public-yum.oracle.com/public-yum-ol6.repo

[root]# yum install kmod-oracleasm

Install the lib and support:

[root]# rpm -i oracleasm-support-2.1.8-1.el6.x86_64.rpm

warning: oracleasm-support-2.1.8-1.el6.x86_64.rpm: Header V3 

RSA/SHA256 Signature, key ID ec551f03: NOKEY

[root]# rpm -i oracleasmlib-2.0.4-1.el6.x86_64.rpm

warning: oracleasmlib-2.0.4-1.el6.x86_64.rpm: Header V3 

RSA/SHA256 Signature, key ID ec551f03: NOKEY

You can install both oracleasm and oracleasm-support.  I couldn't find oracleasmlib, so opted to download it and 

install the rpm.