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

[Sam Folk-Williams <samfw redhat com>]

Aaron Metzger wrote:
> 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.

The doc needs updating. I did some updating this weekend. The button is 
not as obvious now but it is still there (you have to right-click on the 
hypervisor to see the "New" option. I'm not sure why this changed, but I 
have updated that bit.

Th
anks,
Sam
> 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
>
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