This is an experimental VagrantVbguest Installer which attempts to update the kernel to the latest available version before installing the guest additions
This plugin requires the vagrant plugin vagrant-vbguest
vagrant plugin install 'vagrant-vbguest-redhat-kernel-update'
I don't have a lot of time for this project so you may wish to fork and move on. I will happily accept pull requests if they match the existing work and don't break existing functionality.
The gem is available as open source under the terms of the MIT License.