I don't really understand why it would fail. Sometimes when I start the setup process it is fine, next time it doesn't work. I'm not comfortable continuing with the upgrade it being flaky like this. I'm just wondering what could cause this? Here's the output from the logs:
(01) 2013-09-21 13:40:18 Slp: Running Action: RunRemoteDiscoveryAction(01) 2013-09-21 13:40:18 Slp: Running discovery on local machine
(01) 2013-09-21 13:40:20 Slp: Discovery on local machine is complete
(01) 2013-09-21 13:40:20 Slp: Running discovery on remote machine: PC1N1
(01) 2013-09-21 13:41:31 Slp: Discovery on PC1N1 failed due to exception
(01) 2013-09-21 13:41:31 Slp: Microsoft.SqlServer.Management.Sdk.Sfc.EnumeratorException: Failed to retrieve data for this request. ---> Microsoft.SqlServer.Configuration.Sco.SqlRegistryException: The handle is invalid.
at Microsoft.SqlServer.Configuration.Sco.InternalRegistryKey.OpenSubKey(String subkey, RegistryAccess requestedAccess)
at Microsoft.SqlServer.Configuration.Sco.SqlRegistryKey.OpenSubKey(String subkey, RegistryAccess requestedAccess)
at Microsoft.SqlServer.Discovery.DiscoveryUtils.GetLocalMachineSubKey(ServiceContainer ctx, String machineName, RegistryView regView, String regPath, RegistryAccess registryAccess)
at Microsoft.SqlServer.Discovery.DiscoveryEnumObject.GetInstanceHiveForSqk2kInstance(String machineName, String instanceName, RegistryView regView)
at Microsoft.SqlServer.Discovery.DiscoveryEnumObject.GetSql2kMsiInstanceListInHive(String machineName, RegistryView regView)
at Microsoft.SqlServer.Discovery.DiscoveryEnumObject.LoadSql2kInstanceList(String machineName)
at Microsoft.SqlServer.Discovery.Product.GetData(EnumResult erParent)
at Microsoft.SqlServer.Management.Sdk.Sfc.Environment.GetData()
at Microsoft.SqlServer.Management.Sdk.Sfc.Environment.GetData(Request req, Object ci)
at Microsoft.SqlServer.Management.Sdk.Sfc.Enumerator.GetData(Object connectionInfo, Request request)
at Microsoft.SqlServer.Management.Sdk.Sfc.Enumerator.Process(Object connectionInfo, Request request)
--- End of inner exception stack trace ---
at Microsoft.SqlServer.Management.Sdk.Sfc.Enumerator.Process(Object connectionInfo, Request request)
at Microsoft.SqlServer.Chainer.Infrastructure.SqlDiscoveryDatastoreInterface.ProcessDTbl(DataTable dt, Int32 level)
at Microsoft.SqlServer.Chainer.Infrastructure.SqlDiscoveryDatastoreInterface.CollectSqlDiscoveryData(String machineName)
at Microsoft.SqlServer.Chainer.Infrastructure.SqlDiscoveryDatastoreInterface.CollectDiscoveryData(String machineName)
at Microsoft.SqlServer.Chainer.Infrastructure.SqlDiscoveryDatastoreInterface.LoadData(IEnumerable`1 machineNames, String discoveryDocRootPath, String clusterDiscoveryDocRootPath)
(01) 2013-09-21 13:41:31 Slp: Error: Action "Microsoft.SqlServer.Configuration.SetupExtension.RunDiscoveryAction" threw an exception during execution.
(01) 2013-09-21 13:41:31 Slp: Microsoft.SqlServer.Setup.Chainer.Workflow.ActionExecutionException: Failed to retrieve data for this request. ---> Microsoft.SqlServer.Management.Sdk.Sfc.EnumeratorException: Failed to retrieve data for this request. ---> Microsoft.SqlServer.Configuration.Sco.SqlRegistryException: The handle is invalid.
(01) 2013-09-21 13:41:31 Slp: Exception type: Microsoft.SqlServer.Management.Sdk.Sfc.EnumeratorException
(01) 2013-09-21 13:41:31 Slp: Message:
(01) 2013-09-21 13:41:31 Slp: Failed to retrieve data for this request.
(01) 2013-09-21 13:41:31 Slp: HResult : 0x80131500
(01) 2013-09-21 13:41:31 Slp: Data:
(01) 2013-09-21 13:41:31 Slp: HelpLink.ProdName = Microsoft SQL Server
(01) 2013-09-21 13:41:31 Slp: HelpLink.BaseHelpUrl = http://go.microsoft.com/fwlink
(01) 2013-09-21 13:41:31 Slp: HelpLink.LinkId = 20476
(01) 2013-09-21 13:41:31 Slp: Stack:
(01) 2013-09-21 13:41:31 Slp: at Microsoft.SqlServer.Management.Sdk.Sfc.Enumerator.Process(Object connectionInfo, Request request)
(01) 2013-09-21 13:41:31 Slp: at Microsoft.SqlServer.Chainer.Infrastructure.SqlDiscoveryDatastoreInterface.ProcessDTbl(DataTable dt, Int32 level)
(01) 2013-09-21 13:41:31 Slp: at Microsoft.SqlServer.Chainer.Infrastructure.SqlDiscoveryDatastoreInterface.CollectSqlDiscoveryData(String machineName)
(01) 2013-09-21 13:41:31 Slp: at Microsoft.SqlServer.Chainer.Infrastructure.SqlDiscoveryDatastoreInterface.CollectDiscoveryData(String machineName)
(01) 2013-09-21 13:41:31 Slp: at Microsoft.SqlServer.Chainer.Infrastructure.SqlDiscoveryDatastoreInterface.LoadData(IEnumerable`1 machineNames, String discoveryDocRootPath, String clusterDiscoveryDocRootPath)
(01) 2013-09-21 13:41:31 Slp: at Microsoft.SqlServer.Configuration.SetupExtension.RunDiscoveryAction.ExecuteAction(String actionId)
(01) 2013-09-21 13:41:31 Slp: at Microsoft.SqlServer.Chainer.Infrastructure.Action.Execute(String actionId, TextWriter errorStream)
(01) 2013-09-21 13:41:31 Slp: at Microsoft.SqlServer.Setup.Chainer.Workflow.ActionInvocation.ExecuteActionHelper(TextWriter statusStream, ISequencedAction actionToRun, ServiceContainer context)
(01) 2013-09-21 13:41:31 Slp: Inner exception type: Microsoft.SqlServer.Configuration.Sco.SqlRegistryException
(01) 2013-09-21 13:41:31 Slp: Message:
(01) 2013-09-21 13:41:31 Slp: The handle is invalid.
(01) 2013-09-21 13:41:31 Slp:
(01) 2013-09-21 13:41:31 Slp: HResult : 0x84d10006
(01) 2013-09-21 13:41:31 Slp: FacilityCode : 1233 (4d1)
(01) 2013-09-21 13:41:31 Slp: ErrorCode : 6 (0006)
(01) 2013-09-21 13:41:31 Slp: Data:
(01) 2013-09-21 13:41:31 Slp: WatsonData = Microsoft.SqlServer.Configuration.Sco.SqlRegistryException@Win32Error