yahoo-eng-team team mailing list archive

[Dane Fichter <1449084@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Booting from volume does not actually boot from the volume; it boots
from a Glance image. Perform the following steps to test this:

Using the GUI steps:
1. In the "Volumes" tab, select "Create Volume". For "Volume Source", select an image (I use CirrOS). Click "Create Volume". 
2. On your host machine, open a terminal and overwrite the volume:
$ sudo dd if=/dev/zero of=dev/stack-volumes-lvmdriver-1/volume-[ID OF VOLUME] bs=10M
3. In the "Instances" tab, select "Launch Instance". For "Instance Boot Source", select "Boot from volume". Be sure to select a flavor with enough storage to support the volume (if using CirrOS, pick m1.tiny). For "Volume", select the volume you created in step 1. Click "Launch".

Using the CLI:
1. Create the volume:
cinder create --image-id $(glance image-list | grep cirros-0.3.1-x86_64-uec[^-] | cut -d '|' -f 2 | xargs echo) --name sample-volume 1
2. Overwrite the volume:
$ sudo dd if=/dev/zero of=dev/stack-volumes-lvmdriver-1/volume-[ID OF VOLUME] bs=10M
3. Boot the volume:
nova boot --flavor m1.tiny --boot-volume sample-volume instance

Expected result: The instance should not boot in either of these cases; the volumes are empty.
Actual result: The instance boots successfully in both of these cases. 

Additional test to show that the instance is actually being booted from
the Glance image:

Using the CLI:
1. Create the volume:
cinder create --image-id $(glance image-list | grep cirros-0.3.1-x86_64-uec[^-] | cut -d '|' -f 2 | xargs echo) --name sample-volume 1
2. Delete the Glance image:
glance image-list | grep cirros-0.3.1-x86_64-uec | cut -d '|' -f 2 | xargs glance image-delete
3. Attempt to boot the volume:
nova boot --flavor m1.tiny --boot-volume sample-volume instance

Expected result: This should succeed; we are attempting to boot from the volume.
Actual result: This fails.

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1449084

Title:
  Boot from volume does not boot from volume

Status in OpenStack Compute (Nova):
  New

Bug description:
  Booting from volume does not actually boot from the volume; it boots
  from a Glance image. Perform the following steps to test this:

  Using the GUI steps:
  1. In the "Volumes" tab, select "Create Volume". For "Volume Source", select an image (I use CirrOS). Click "Create Volume". 
  2. On your host machine, open a terminal and overwrite the volume:
  $ sudo dd if=/dev/zero of=dev/stack-volumes-lvmdriver-1/volume-[ID OF VOLUME] bs=10M
  3. In the "Instances" tab, select "Launch Instance". For "Instance Boot Source", select "Boot from volume". Be sure to select a flavor with enough storage to support the volume (if using CirrOS, pick m1.tiny). For "Volume", select the volume you created in step 1. Click "Launch".

  Using the CLI:
  1. Create the volume:
  cinder create --image-id $(glance image-list | grep cirros-0.3.1-x86_64-uec[^-] | cut -d '|' -f 2 | xargs echo) --name sample-volume 1
  2. Overwrite the volume:
  $ sudo dd if=/dev/zero of=dev/stack-volumes-lvmdriver-1/volume-[ID OF VOLUME] bs=10M
  3. Boot the volume:
  nova boot --flavor m1.tiny --boot-volume sample-volume instance

  Expected result: The instance should not boot in either of these cases; the volumes are empty.
  Actual result: The instance boots successfully in both of these cases. 

  Additional test to show that the instance is actually being booted
  from the Glance image:

  Using the CLI:
  1. Create the volume:
  cinder create --image-id $(glance image-list | grep cirros-0.3.1-x86_64-uec[^-] | cut -d '|' -f 2 | xargs echo) --name sample-volume 1
  2. Delete the Glance image:
  glance image-list | grep cirros-0.3.1-x86_64-uec | cut -d '|' -f 2 | xargs glance image-delete
  3. Attempt to boot the volume:
  nova boot --flavor m1.tiny --boot-volume sample-volume instance

  Expected result: This should succeed; we are attempting to boot from the volume.
  Actual result: This fails.

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