Oracle Linux 7 contains Ruby version 2.0.0. The system paths for libraries and gems have changed from Oracle Linux 6.

The files and directories listed below are not owned by any RPM package, or they are owned by RPM packages that are not signed by Oracle. These packages need to be rebuilt and reinstalled to work with Ruby 2.0.0.

For the information about migrating Ruby from Oracle Linux 6 to Oracle Linux 7, see [link:https://access.redhat.com/site/articles/790123].
