Add a HardDisk to a VM (vCloud:VM)

Hi all,

following problem:

I use a modified version of the "Add a vApp with a new virtual machine" Worklow (attached), but I run into problems. Sometimes (and I mean sometimes, not always) the HD that is added is not compatible with the Guest OS. Meaning that I choose a rhel6_64 and a BusLogic Controller is added, which results in the VM not powering on.

I created a mod of the "Add a hard disk" (attached) that should create me the bustype I want, however its not working that well either. I can specify LSI_LOGIC_SAS bust still get a LSI_LOGIC.

I wonder what I'm doing wrong here....