Boot from image fails without a clear error message

[Andreas Scheuring]

Booting an instance form image fails somewhere with a magic error message.But as we do not support the boot from image case. We should check that at first when the spawn method is entered or even the pre_for_spawn method is entered and abort with an appropriate error message!

[Markus Zoeller (markus_z) (mzoeller)]

Doesn't block the Ocata release, should be backported though.

[Andreas Scheuring (andreas-scheuring)]

hhhmm I would consider this at least as medium - as booting from image is the major use case in OpenStack... and this one is not working...

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/458061

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/458061
Committed: https://git.openstack.org/cgit/openstack/nova-dpm/commit/?id=ff1e8ed06024ce849a425fc8fb08b3251cb70806
Submitter: Jenkins
Branch: master

commit ff1e8ed06024ce849a425fc8fb08b3251cb70806
Author: Prabhat Ranjan <email address hidden>
Date: Wed Apr 19 18:20:40 2017 +0530

    Boot from image fails without a clear error message

    Booting an instance form image fails somewhere with
    a magic error message.But as we do not support the boot
    from image case. We should check that at first
    when the spawn method is entered or even the
    pre_for_spawn method is entered and abort with
    an appropriate error message!

    Closes-Bug: #1663550

    Change-Id: I577b28d034322b109b81c978cb50a299be140510
    Signed-off-by: Prabhat Ranjan <email address hidden>