still no go... remember this is directly on the rancher server SLES box via ssh.
quickstart-rancher-server:/home/xxx # kubectl get
clusters.management.cattle.io
NAME AGE
c-5rq6c 2d12h
local 2d12h
c-5zgzf 2d10h
quickstart-rancher-server:/home/xxx # kubectl patch cluster local -p '{"status":{"agentImage":"dummy"}}' --type merge
Error from server (NotFound):
clusters.provisioning.cattle.io "local" not found