Are you facing errors during running root.sh in one of the cluster nodes managed by Oracle VirtualBox while installing Oracle 12c R1 Grid Infrastructure software ?
Cause - Installer has failed to execute the specified script on one or more nodes. This might be because of exception occurred while executing the script on nodes. Action - Review the log files '/u01/app/oraInventory/logs/installActions2016-04-07_11-26-02PM.log' and '/u01/app/12.1.0/grid/cfgtoollogs/crsconfig/rootcrs_<nodename>_<timestamp>.log' for further details. More Details
Execution of GI Install script is successful on nodes : [oraracn1] Execution of GI Install script is failed on nodes : [oraracn2] Exception details - PRCZ-2009 : Failed to execute command "/u01/app/12.1.0/grid/root.sh" as root within 3,600 seconds on nodes "oraracn2"
The command '/u01/app/12.1.0/grid/perl/bin/perl -I/u01/app/12.1.0/grid/perl/lib -I/u01/app/12.1.0/grid/crs/install /u01/app/12.1.0/grid/crs/install/rootcrs.pl -auto' execution failed
This issue is known to occur with a combination of VirtualBox 5.x version and AMD CPU (Phenom X4, AM3 slot) in conjunction with Oracle 12c R1 Grid Infrastructure.
1) Uninstall Oracle VM VirtualBox software from Control Panel of your PC.
2) Then install Oracle VM VirtualBox 4.3.36. This old build of VirtualBox can be downloaded here.
3) Now perform the installation of Oracle 12c R1 Grid Infrastructure software and it should be completed successfully on all the nodes of the cluster.
Oracle may fix this issue in one of the future versions of the VirtualBox hypervisor software.