[Bug 1439371] Re: [SRU] Volume creation from image fails for UEC and Glance API version 2

[Martin Pitt]

Hello Jon, or anyone else affected,

Accepted cinder into trusty-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/cinder/1:2014.1.5-0ubuntu2.1 in a
few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, and change the tag
from verification-needed to verification-done. If it does not fix the
bug for you, please add a comment stating that, and change the tag to
verification-failed.  In either case, details of your testing will help
us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: cinder (Ubuntu Trusty)
       Status: In Progress => Fix Committed

** Tags added: verification-needed

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https://bugs.launchpad.net/bugs/1439371

Title:
  [SRU] Volume creation from image fails for UEC and Glance API version
  2

Status in Cinder:
  Fix Released
Status in Cinder kilo series:
  Fix Released
Status in Ubuntu Cloud Archive:
  Fix Released
Status in Ubuntu Cloud Archive icehouse series:
  In Progress
Status in cinder package in Ubuntu:
  Invalid
Status in cinder source package in Trusty:
  Fix Committed

Bug description:
  [Description]
  [Test Case]
  When creating a volume from a glance UEC image, the RBD driver fails to combine the rootfs, kernel, and ramdisk into a single volume suitable for booting an instance.  Instead, only the rootfs is written to the volume, which is empty.  This causes nova's boot-from-volume operation to fail if the volume is ceph-backed and the image is of type UEC.

  By contrast, the same operation on an LVM volume yields a volume that
  contains all the necessary pieces to boot an instance.

  This is also likely the reason for recent ceph CI job failures in
  test_volume_boot_pattern, as tempest executes this exact set of
  operations.

  [Regression Potential]
  Regression potential is low. Patch is cherry-picked from upstream stable/liberty branch without any changes.

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