Virtual size of the QCOW2 should be logged when flavor's root disk size < virtual size of the QCOW2

[Hirofumi Ichihara]

When we boot VM with QCOW2 which virtual size of the QCOW2 is larger than flavor's root disk size, boot fails with Error( /opt/stack/data/nova/instances/_base/instanceID virtual size larger than flavor root disk size xxxxxxxxxx). This behavior is right( This patch is bug #1177830 ).

But we cannot know virtual size in the log and cannot select suitable flavor. We must command 'qemu-img info image-path' on machine hosted image for knowing it.

So virtual size of the QCOW2 should be logged when flavor's root disk size < virtual size of the QCOW2.
(e.g. /opt/stack/data/nova/instances/_base/instanceID virtual size yyyyyyyyyyyy larger than flavor root disk size xxxxxxxxx )

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/39241

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/39241
Committed: http://github.com/openstack/nova/commit/62e8dd3042bb62c0e11db6cfd64ca9841eb689b9
Submitter: Jenkins
Branch: master

commit 62e8dd3042bb62c0e11db6cfd64ca9841eb689b9
Author: Hirofumi Ichihara <email address hidden>
Date: Tue Jul 30 16:29:23 2013 +0900

    Logging virtual size of the QCOW2

    When we boot VM with QCOW2 which virtual size of the QCOW2 is larger than
    flavor's root disk size, we cannot know virtual size in the log.

    Virtual size of the QCOW2 should be logged.

    Change-Id: I3ed969151525cada2208f755b0116ed0eca1bdf2
    Fixes: bug #1206362