VHD root disks and VM start-up process at XenServer

[Vadim Kimlaychuk]

Hello friends,

            I would like to understand how CloudStack creates/runs VM on 
XenServer host?  What source files contain process of VM start-up?
            I want to repeat this process manually on dedicated host, but it 
seems XAPI does not work with VHD disk images.  I can’t start VM from existing 
VHD file manually. Converting it to XVA is not the case I suppose.

            I have tried to create empty VM from XenServer template and replace 
root disk by my VHD file, but VM fails to start-up. Who can shed the light on 
this process?

Thanks,

Vadim Kimlaychuk