boot from volume fails on Hyper-V if boot device is not vda

[Alessandro Pilotti]

The Tempest test "tempest.scenario.test_volume_boot_pattern.TestVolumeBootPatternV2.test_volume_boot_pattern" fails on Hyper-V.

The cause is related to the fact that the root device is "sda" and not "vda".

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/114834

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/114834
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=ea19fb10c5e09ff5df383607654ab9dc2791ec21
Submitter: Jenkins
Branch: master

commit ea19fb10c5e09ff5df383607654ab9dc2791ec21
Author: Alessandro Pilotti <email address hidden>
Date: Sun Aug 17 21:00:54 2014 +0300

    Fixes Hyper-V boot from volume root device issue

    Checks that instances are booting from volume by checking
    the correct root device obtained from the block device info.

    Change-Id: I94941dfe96c1596c8e9b91df3d3d19d33ae7fe92
    Co-Authored-By: Zsolt Dudas <email address hidden>
    Closes-Bug: #1357972

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/icehouse
Review: https://review.openstack.org/120350

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/120350
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=d72c0a4f03f56f6b24b86d3740fd721ef0a63080
Submitter: Jenkins
Branch: stable/icehouse

commit d72c0a4f03f56f6b24b86d3740fd721ef0a63080
Author: Alessandro Pilotti <email address hidden>
Date: Sun Aug 17 21:00:54 2014 +0300

    Fixes Hyper-V boot from volume root device issue

    Checks that instances are booting from volume by checking
    the correct root device obtained from the block device info.

    Change-Id: I94941dfe96c1596c8e9b91df3d3d19d33ae7fe92
    Co-Authored-By: Zsolt Dudas <email address hidden>
    Closes-Bug: #1357972
    (cherry picked from commit ea19fb10c5e09ff5df383607654ab9dc2791ec21)