David: Indeed ! How stupid I am. I missed the root cause inside QUEMU log file. This was clear enough... error: kvm run failed Device or resource busy This is probably because your SMT is enabled.
So I switch SMT (Power Simultaneous Multi-Threading) off and now it's OK; VMs are running and installing. It had been years since I last touched KVM on Power and I lost my reflexes. So please forget my precedent comment telling I had the same issue on Power platform. It was similar symptoms but not the same problem. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1866870 Title: KVM Guest pauses after upgrade to Ubuntu 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1866870/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
