Test steps/results (Upgrade: Ussuri -> Victoria)
------------------------------------------------

The 'test' server with UEFI was started on Ussuri
with the patch applied (i.e., it boots correctly;
see comment #15).

Now we upgrade from Openstack Ussuri to Victoria,
apply the patch, and restart the 'test' server
(it still boots correctly; as in comment #16).

Upgrade Reference:
	https://docs.openstack.org/project-deploy-guide/charm-deployment-guide/wallaby/upgrade-openstack.html

Commands and versions before/after:

	$ juju config rabbitmq-server source=cloud:focal-victoria

	$ juju config keystone openstack-origin=cloud:focal-victoria
		keystone                            17.0.1 ...
		keystone                            18.1.0 ...

	$ juju config cinder openstack-origin=cloud:focal-victoria
		cinder                              16.4.2 ...
		cinder                              17.4.0 ...

	$ juju config glance openstack-origin=cloud:focal-victoria
		glance                              20.2.0 ...
		glance                              21.1.0 ...

	$ juju config neutron-api openstack-origin=cloud:focal-victoria
		neutron-api                         16.4.2 ...
		neutron-api                         17.4.1 ...

	$ juju config neutron-gateway openstack-origin=cloud:focal-victoria
		neutron-gateway                     16.4.2 ...
		neutron-gateway                     17.4.1 ...

	$ juju config placement openstack-origin=cloud:focal-victoria
		placement                           3.0.1 ...
		placement                           4.0.0 ...

	$ juju config nova-cloud-controller openstack-origin=cloud:focal-victoria
		nova-cloud-controller               21.2.4 ...
		nova-cloud-controller               22.4.0 ...

	$ juju config nova-compute openstack-origin=cloud:focal-victoria
		nova-compute                        21.2.4 ...
		nova-compute                        22.4.0 ...

Verified that the config option is still in nova.conf:
	/etc/nova/nova.conf:ubuntu_libvirt_uefi_loader_path = True

Applied the changes.
Restarted nova-compute.service.

The old XML from Ussuri (VM is still running)

	$ juju ssh nova-compute/0 sudo virsh dumpxml instance-00000002 2>&1 | sed -n '/<os>/,/<\/os>/p'
	  <os>
	    <type arch='x86_64' machine='pc-i440fx-4.2'>hvm</type>
	    <loader readonly='yes' type='pflash'>/usr/share/OVMF/OVMF_CODE.fd</loader>
	    <nvram>/var/lib/libvirt/qemu/nvram/instance-00000002_VARS.fd</nvram>
	    <boot dev='hd'/>
	    <smbios mode='sysinfo'/>
	  </os>

Stop/Start the server:

	$ openstack server stop test
	$ openstack server show test | grep -e vm_state -e status -e task_state -e instance_name
	| OS-EXT-SRV-ATTR:instance_name       | instance-00000002                                        |
	| OS-EXT-STS:task_state               | None                                                     |
	| OS-EXT-STS:vm_state                 | stopped                                                  |
	| status                              | SHUTOFF                                                  |

	$ openstack server start test
	$ openstack server show test | grep -e vm_state -e status -e task_state -e instance_name
	| OS-EXT-SRV-ATTR:instance_name       | instance-00000002                                        |
	| OS-EXT-STS:task_state               | None                                                     |
	| OS-EXT-STS:vm_state                 | active                                                   |
	| status                              | ACTIVE                                                   |

The new XML from Victoria (VM restarted; loader changed as expected in Victoria too):

	$ juju ssh nova-compute/0 sudo virsh dumpxml instance-00000002 2>&1 | sed -n '/<os>/,/<\/os>/p'
	  <os>
	    <type arch='x86_64' machine='pc-i440fx-4.2'>hvm</type>
	    <loader readonly='yes' type='pflash'>/usr/share/OVMF/OVMF_CODE.fd</loader>
	    <nvram>/var/lib/libvirt/qemu/nvram/instance-00000002_VARS.fd</nvram>
	    <boot dev='hd'/>
	    <smbios mode='sysinfo'/>
	  </os>

	$ openstack console log show test | grep -o 'test login:'
	test login: