Last week I noted that Microsoft had released a slew of Preview products for System Center 2012 to take advantage of the upcoming R2 release. If you missed it due to the July 4thholiday, you can still located the download links here: Download the Specific System Center 2012 R2 Product Previews.
Operations Manager and Service Manager rely on Management Packs (MPs) to extend monitoring and management functionality, so just downloading the Preview VHDs you get what you get. So, it's good to see Microsoft has also rolled out the twenty-one MPs to give you a much more robust test bed for the R2 Preview releases.
All twenty-one MPs are available for download in a single .MSI file. You can get the .MSI file and a .Zip file containing all twenty-one Management Pack guides here:
Windows Server 2012 R2 Preview Management Packs for System Center 2012
BTW: Here's the list of MPs contained in the download: