addnode gave PRCF-2023 : The following contents are not transferred as they are non-readable.

While adding a node to an existing four node cluster, got the following error.

Copying to remote nodes (Monday, May 20, 2013 8:37:18 AM EDT)
.........................................................................
WARNING:Error while copying directory /usr/local/opt/oracle/product/11.2.0.3 with exclude file list '/tmp/OraInstall2013-05-20_08-36-45AM/installExcludeFile.lst' 
to nodes 'myrac6d5'. [PRKC-PRCF-2015 : One or more commands were not executed successfully on one or more nodes : <null>]
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nmsis6d5:
PRCF-2023 : The following contents are not transferred as they are non-readable.
Directories:
-
Files:
1) /usr/local/opt/oracle/product/11.2.0.3/root.sh_11203

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Refer to '/usr/local/opt/oracle/product/oraInventory/logs/addNodeActions2013-05-20_08-36-45AM.log' for details. 
You may fix the errors on the required remote nodes. Refer to the install guide for error recovery.

The issue in this case was the file permission on the file root.sh_11203

Solution
========
Fix the file permission so that its readable by the user owning the ORACLE_HOME and re-run the add_node command.