Guest recipe functionality is described in the Beaker documentation, but actually using it requires the /distribution/virt/* tasks which aren't currently in the public repos. We should fix that :)
For the time being I'll add the RPMs to the beaker repo
I also found a previous discussion where Gurhan gave a +1 to open sourcing these properly: https://lists.fedorahosted.org/pipermail/beaker-devel/2012-October/000374.html So I think "MODIFIED" for this bug should refer to actually adding the source under Tasks/ in the main beaker repo, rather than just publishing the RPMs.
On second thoughts... let's use this one to cleanly track the implementation of the RPM publication workaround and sort out the details of the development process later. (We need to decide between losing the git history completely when migrating to Beaker's git repos, or else auditing the history and preserving it in the migration)
The task RPMs for /distribution/virt/install and /distribution/virt/start are now in our source tree: http://git.beaker-project.org/cgit/beaker/tree/Tasks/distribution/virt/start?h=develop http://git.beaker-project.org/cgit/beaker/tree/Tasks/distribution/virtinstall?h=develop and published on beaker-project.org: http://beaker-project.org/tasks/ As noted in comment 3, publishing the tasks properly (including source history) is a separate issue.