Sharepoint 2010 to 2013 upgrade Error CheckNoEBSStreams

I am currently testing the upgrade path for SharePoint 2010 to 2013. SharePoint 2010 is SQL 2012 and SharePoint 2013 is SQL 2012 SP1. (Could this be the problem?)

I am at the stage where I want to attach a content data base that uses RBS.

When I run the POwershell command to test the upgradability of the content database (Test-SPContentDatabase) I get a number of UpgradeBlocking errors and cannot find anything to help. See below.

Category        : CheckNoEBSStreams
Error           : True
UpgradeBlocking : True
Message         : Content database cannot be upgraded due to use of the
                  obsoleted External Binary Storage feature in 'AllDocs' table
                  with ID 'a0cda313-2f50-48a8-817d-02179b9fd633'. You must
                  migrate that data to another storage feature.
Remedy          : Content database cannot be upgraded due to use of the
                  obsoleted External Binary Storage feature in 'AllDocs' table
                  with ID 'a0cda313-2f50-48a8-817d-02179b9fd633'. You must
                  migrate that data to another storage feature.
Locations       :

Can someone shed some light on how I get around this. If it is possible that is!!!!