Hello roland,
did you try :
Router# redundancy force-switchover
Conducts a manual switchover to the redundant supervisor engine. The redundant supervisor engine becomes the new active supervisor engine running the new Cisco IOS image. The modules are reloaded and the module software is downloaded from the new active supervisor engine.
The old active supervisor engine reboots with the new image and becomes the redundant supervisor engine.
Hope this helps.. all the best. rate replies if found useful..
Raj