+++ This bug was initially created as a clone of Bug #1760740 +++
+++ This bug was initially created as a clone of Bug #1760272 +++
After updating compute nodes from OSP10/RHEL-7.4 with packages from 2018 to latest OSP10 and RHEL-7.7, instances created from glance images that have set the property os_distro=rhel7.5 fail to create, boot or migrate over updated compute nodes with the following error:
File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/blockinfo.py", line 241, in get_disk_bus_for_device_type
2019-10-10 09:18:22.293 4368 ERROR nova.compute.manager [instance: e0a00e92-e269-450e-8248-1f47e7ff6392] virt=virt_type)
2019-10-10 09:18:22.293 4368 ERROR nova.compute.manager [instance: e0a00e92-e269-450e-8248-1f47e7ff6392] UnsupportedHardware: Requested hardware 'virtio1.0-block' is not supported by the 'kvm' virt driver
2019-10-10 09:18:22.293 4368 ERROR nova.compute.manager [instance: e0a00e92-e269-450e-8248-1f47e7ff6392]
Instances created from glance images without the os_distro=rhel7.5 property work fine.
Upstream bug: https://bugs.launchpad.net/nova/+bug/1835400
Upstream gerrit: https://review.opendev.org/#/c/669190/
--- Additional comment from Mikel Olasagasti on 2019-10-11 08:04:24 UTC ---
Changing os_distro=rhel7.5 with to os_distro=rhel, os_version=7.5 seems to be a valid workaround.
Changing to OSP13 as it is also affecting OSP13.
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