DHCP role installation fails with error 0x800f0922

Hi,

I'm attempting to install the DHCP role on my WS2012 Essentials server, and it fails with error 0x800f0922. I've tried the usual reboots, etc., to no avail. Other roles have successfully installed.

Here is what looks like the pertinent section in the c:\windows\logs\DISM\dism.log file:

2012-11-03 18:10:10, Info                  DISM   DISM Package Manager: PID=30428 TID=7872 Initiating Changes on Package with values: 5, fffffff0 - CDISMPackage::Internal_ChangePackageState
2012-11-03 18:10:11, Info                  DISM   DISM Package Manager: PID=30428 TID=7872 CBS session options=0x40100! - CDISMPackageManager::Internal_Finalize
2012-11-03 18:10:46, Info                  DISM   DISM Package Manager: PID=30428 TID=28424  Error in operation: (null) (CBS HRESULT=0x800f0922) - CCbsConUIHandler::Error
2012-11-03 18:10:46, Error                 DISM   DISM Package Manager: PID=30428 TID=7872 Failed finalizing changes. - CDISMPackageManager::Internal_Finalize(hr:0x800f0922)
2012-11-03 18:10:46, Error                 DISM   DISM Package Manager: PID=30428 TID=7872 Failed processing package changes with session options - CDISMPackageManager::ProcessChangesWithOptions(hr:0x800f0922)
2012-11-03 18:10:46, Error                 DISM   API: PID=35860 TID=31796 Failed to process features change - CEnableDisableFeatureCommandObject::InternalExecute(hr:0x800f0922)
2012-11-03 18:10:46, Error                 DISM   API: PID=35860 TID=31796 InternalExecute failed - CBaseCommandObject::Execute(hr:0x800f0922)
2012-11-03 18:10:46, Error                 DISM   API: PID=35860 TID=10672 CEnableDisableFeatureCommandObject internal execution failed - DismEnableDisableFeatureInternal(hr:0x800f0922)
2012-11-03 18:10:46, Info                  DISM   API: PID=35860 TID=10672 Exit DismEnableDisableFeatureInternal - DismEnableDisableFeatureInternal

Any help would be appreciated, as I can't cut over operations from another server to this Essentials server until I get DHCP working.