A KB article regarding Red Hat is being posted on Microsoft Support. If you’re not a SQL expert, find one, or just follow simple instructions for free SQL Studio Express Edition. “On System Center Virtual Machine Manager 2008 R2, it’s possible to select Red Hat as VM 'Operating System' property for a VM hosted by Hyper-V. The job, however, will show as failed with Error 10637. This can occur when creating a new VM or changing this property on an existing VM. This doesn’t affect the function or stability of VM itself. This property's found on General tab of VM properties dialog. A database entry that identifies the list of supported VM OSs per hypervisor requires an update.” To fix “Using SQL Server Management Studio Express, or a full SQL installation, make a full backup of SCVMM database. Next, connect to SCVMM database (VirtualManagerDB by default). Open new query and enter commands below. Number of affected columns will be returned in 'Messages' window if present.
where Name like 'Red Hat Enterprise Linux 5%'