Hi,I now use SCCM 2007 R2 w/SP2 on single server with Windows Server 2008 w/SP2 (X64) operating system.Is possible upgrade operating system on this server to new version Windows Server 2008 R2 ?Is this supported configuration ?Thanks,L.

Server 2008 R2 is a supportedconfiguration with ConfigMgr SP2, but upgrading the OS (while ConfigMgr is running on it) isn't. You could reinstall the OS with R2 and use ConfigMgr's backup and recovery mechanisms.

I have SQL DB on another server.In this configuration, when I stop and disable all ConfigMgr services, is upgrade OS supported ?

Officially no, the only support upgrade method would be backup and recovery. However I dont see why this wouldnt work going from Win2k8 to Win2k8 R2 but I would test this in the lab first. IMHO I wouldnt bother upgrading the OS to R2 on a working ConfigMgr Site. I would wait until Im replacing the server before doing that. Plus I dont think moving to R2 will give you anything that will benefit ConfigMgr. http://www.enhansoft.com/

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Where is detail step by step how-to ConfMgr Backup before reinstall OS on server and recovery ConfMgr ?

See http://technet.microsoft.com/en-us/library/bb633229.aspxand http://technet.microsoft.com/en-us/library/bb632545.aspx

Hi, Torsten! Can you please point a page/statement/etc. where that is officially told =)? I've tried to find it but with no luck yet... /jarmo

Which statement? That upgrading the OS from Server 2008 to R2 is not supported? Here you go: http://technet.microsoft.com/en-us/library/ee344146.aspx: "The following scenarios are not supported by Configuration Manager: Upgrading the operating system on the site server from Windows Server 2003 to any version of Windows Server 2008, or from Windows Server 2008 to Windows Server 2008 R2"

Thanks! That's exactly I was looking for. I assume that this is valid also when we are running with SCCM R2?

Sure.