[ovirt-users] Re: oVirt 4.4.1 HCI single server deployment failed nested-kvm

I've run KVM VMs ontop oVirt Guest. Are you sure that the Nested Virtualization is your problem ? Best Regards, Strahil Nikolov На 29 юли 2020 г. 23:33:48 GMT+03:00, thomas(a)hoberg.net написа: >I tried using nested virtualization, too, a couple of weeks ago. > >I was using a 3 node HCI CentOS 7.8 cluster and I got pretty far. >Configuring KVM to work with nested page tables isn't all that well >documented but I got there, I even installed some host extensions, that >seem requried. > >Even the actual nesting, that is a VM run inside a VM did work, the >setup came to the point where it ran the hosted engine on temporary >local storage, before it's picked up, fixed up to run on the Gluster >storage and restarted there. But that process failed eventually, >evidently because the overlay network doesn't support nesting. Where >the initial hosted engine is using a local bridge with the (in this >case virtual) host--and that works--afterwards it's using the overlay >network and that evidently doesn't. > >It was only then when I ran across a very obscure message somewhere in >this mailing list, that oVirt on top of oVirt in fact does not work at >all! Up to that point it just wasn't "supported". > >When a hypervisor producer speaks of nested virtualization support, I >would understand it to mean that you can run their product under their >product, ideally also somebody else's product. I've run ESX on VMware >workstation and that was pretty cool. > >In the case of oVirt from what I have gathered (and I'd love to be >wrong), it is supposed to only mean that you can run oVirt on top of >KVM. > >Not the other way around, nor in any other way most likely. > >To me that looks much more like an internal Redhat development >facility, than a product feature. > >Of course I mostly wish they'd find a way to make it work like it does >on VMware. >But next on my wishlist would be an explicit description of what does >and what doesn't work. > >This way it was almost a week of a me against the computer adventure >where I lost. >_______________________________________________ >Users mailing list -- users(a)ovirt.org >To unsubscribe send an email to users-leave(a)ovirt.org >Privacy Statement: https://www.ovirt.org/privacy-policy.html >oVirt Code of Conduct: >https://www.ovirt.org/community/about/community-guidelines/ >List Archives: >https://lists.ovirt.org/archives/list/users@ovirt.org/message/7WHRDMXMAWW3DPS24X23X3GCY5S2MCZF/