[one-users] Ubuntu 12.04 KVM package breaking opennebula (libvirt) templates

[Shankhadeep Shome]

I tried to add some Ubuntu 12.04 hosts into my cluster and had some
problems deploying VMs on these new hosts.. turns out there was a change
from 11.10..

Changes to Ubuntu KVM packages...

So for some reason Ubuntu 12.04 packages creates two kvm binary links
breaking backward compatibility with libvirt templates

This requires the following changes to the libvirt templates

change

<emulator>/usr/bin/kvm</emulator>

to

<emulator>/usr/bin/kvm-spice</emulator>

Or relink the kvm symbolic link to qemu-system-x86_64-spice

ln -s kvm qemu-system-x86_64-spice

Or I assume update Open Nebula kvm defaults with the correct emulator

EMULATOR = /usr/bin/kvm-spice >> /etc/one/vmm_exec/vmm_exec_kvm.conf
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