> -----Original Message----- > From: Darren Shepherd [mailto:darren.s.sheph...@gmail.com] > Sent: 13 September 2013 17:40 > To: dev@cloudstack.apache.org > Subject: Re: [Proposal] Userdata Support for Hyper-V with KVP Data > Exchange > > On 09/13/2013 08:51 AM, Donal Lafferty wrote: > > IIRC, OpenStack puts userdata for Hyper-V guest VMs on a separate > volume. The guest can mount the volume and extract the data. > > > > However, I suggest we use Hyper-V's KVP Data Exchange mechanism > instead. Doing so keeps volume management and passing userdata cleanly > separated. > > > > Feature Spec at > > > https://cwiki.apache.org/confluence/display/CLOUDSTACK/Userdata+Suppo > r > > t+for+Hyper-V+with+KVP+Data+Exchange > > > > Why does Hyper-V need something specific? Is userdata really hypervisor > specific? I though we just put the userdata on the VR? > > Darren
The system VM gets its config before the network stack is initialised. This prevents the data coming from the VR. There is no specific approach to passing user data. In the case of Xen, the data is passed through pv_args. KVM used to attach a disk, but AFAIK it has changed to a KVP mechanism.
