Today we released the System Center Operations Manager 2007 R2 Cumulative Update 3 with some valuable fixes (KB2251525)
CU3 includes all the fixes from CU1 and CU2 and you therefore only need to apply CU3 to apply all fixes included in these 3 cumulative updates.
Cumulative Update 3 resolves the following issues:
More information can be found in the KB: http://support.microsoft.com/kb/2251525
To download Cumulative Update 3 for System Center Operations Manager 2007 R2, visit the following Microsoft Web site: http://www.microsoft.com/downloads/details.aspx?FamilyID=9f1e1154-52ae-42df-aeea-b3ee83247e6a
Kevin Holman has a great blog about the installation of the update: http://blogs.technet.com/b/kevinholman/archive/2010/10/04/opsmgr-2007-r2-cu3-rollup-hotfix-ships-and-my-experience-installing-it.aspx
If you're looking for commandline deployment of the CU3, go have a look at this blog, also from Kevin Holman: http://blogs.technet.com/b/kevinholman/archive/2010/10/12/command-line-and-software-distribution-patching-scenarios-for-applying-an-opsmgr-cumulative-update.aspx
At one customer, the installation failed when it tried to start the SDK service after the first update. This error has been seen before, and is caused by a timeout problem. All I did to make it work, was to follow this KB:http://support.microsoft.com/kb/922918 and set the ServicesPipeTimeout to 3 minuttes (180000 ms) and rebooted the server. After that I could apply the CU3 with success.