[Fedora-xen] Newbie Virt Questions and comments on wiki/Docs/Fedora8VirtQuickStart

[Aaron Metzger]

I am trying to migrate my virtualization infrastructure from a pure Xen 
implementation to the more versatile Fedora virt-manager Xen/KVM 
environment.  While doing this, I have hit some snags related to areas 
in which pure Xen documentation no longer applies due to the presence of 
lib-virt et al.

First a minor comment on the Fedora8VirtQuickStart (draft I know):

The section:

> Building a Fedora Guest System using `virt-manager`

no longer applies because between Fedora 7 and Fedora 8 there no longer 
appears to be a "New" button or a "File New" option in virt-manager.  It 
would appear that the only way to create a DomU is by way of virt-install.

Now, my problem.

I have successfully created fully functional guest VMs which work 
perfectly in every way but, in the context of lib-virt and virsh, I can 
not figure out how to get the guest machines to be started automatically 
when the host machine boots.  In a pure Xen environment, you 
symbolically link the "/etc/xen/<vm-config>" file into "/etc/xen/auto". 
  After using virt-install to create the guest, the domain configuration 
files end up over in "/var/lib/xend/domains".  I have tried to 
symbolically link the whole domain directory to "/etc/xen/auto", I have 
tried to link the configuration file to "/etc/xen/auto".  I have tried 
to export the configuration as XML using virsh and then put that under 
"/etc/xen/auto".  Nothing works and there is no indication from the 
xend.log that it is even trying to start the guest domains on bootup.

I also tried to use:

   virsh autostart <domain>

and get the error:

   libvir:  error : this function is not supported by the hypervisor: 
virDomainSetAutostart

So, my question is, is it possible to properly manage the start up and 
shut down of guest domains on host start up and shutdown or is that just 
not supported yet.

If there is a way to do this, it would be a very helpful section to add 
to the Quick Start document because I would expect anyone migrating from 
a pure Xen environment to have the same issue.  Google reveals that 
several have asked this question in the past on Fedora 7 etc and I have 
not seen any answer other than people suggesting to link the 
configuration file under "/etc/xen/auto".

Thanks,
Aaron