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[Bug 1271479] Re: ide disk type is not set when starting vm from dashboard

 

This is an automated cleanup. This bug report has been closed because it
is older than 18 months and there is no open code change to fix this.
After this time it is unlikely that the circumstances which lead to
the observed issue can be reproduced.

If you can reproduce the bug, please:
* reopen the bug report (set to status "New")
* AND add the detailed steps to reproduce the issue (if applicable)
* AND leave a comment "CONFIRMED FOR: <RELEASE_NAME>"
  Only still supported release names are valid (LIBERTY, MITAKA, OCATA, NEWTON).
  Valid example: CONFIRMED FOR: LIBERTY


** Changed in: nova
   Importance: Medium => Undecided

** Changed in: nova
       Status: Confirmed => Expired

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https://bugs.launchpad.net/bugs/1271479

Title:
  ide disk type is not set when starting vm from dashboard

Status in OpenStack Compute (nova):
  Expired

Bug description:
  Hello

  we have a openstack havana controller installation with 2 compute
  nodes  centos 6.4 /KVM

  i get 3 ide disk images from i need to build a vm by booting on the
  first one and attach the 2 others as volumes

  when i play the nova command line below the vm start well and volumes
  are attached

  nova boot --flavor vcdn_mn --key_name KEY_NAME --availability-zone nova:vcdn_kvm5 --image c5813703-2bfb-4f58-b0f1-9cd08fb8e596  --nic net-id=a2b8e7e4-cceb-4e5a-881b-8d872f6384db --nic net-id=d2292ebe-a431-4bd9-a5e4-570e2f98f169 --nic net-id=7368ec5a-3f9d-49af-a254-87a754f9b952 --block-device source=volume,dest=volume,id=8d8a2e6d-9c7e-4905-b194-8a74b6ae6c42,bus=ide,shutdown=preserve --block-device source=volume,dest=volume,id=7379756e-e435-40ad-8f0c-de43b0adcac4,bus=ide,shutdown=preserve mn1.vxn1s1.cdn
   
  the libvirt.xml disk device section looks like :

   <disk type="file" device="disk">
        <driver name="qemu" type="qcow2" cache="none"/>
        <source file="/var/lib/nova/instances/a8a255cd-0b60-436d-ae71-e00f28e725bd/disk"/>
        <target bus="ide" dev="hda"/>
      </disk>
      <disk type="block" device="disk">
        <driver name="qemu" type="raw" cache="none"/>
        <source dev="/dev/disk/by-path/ip-192.168.60.23:3260-iscsi-iqn.2010-10.org.openstack:volume-8d8a2e6d-9c7e-4905-b194-8a74b6ae6c42-lun-1"/>
        <target bus="ide" dev="hdb"/>
        <serial>8d8a2e6d-9c7e-4905-b194-8a74b6ae6c42</serial>
      </disk>
      <disk type="block" device="disk">
        <driver name="qemu" type="raw" cache="none"/>
        <source dev="/dev/disk/by-path/ip-192.168.60.23:3260-iscsi-iqn.2010-10.org.openstack:volume-7379756e-e435-40ad-8f0c-de43b0adcac4-lun-1"/>
        <target bus="ide" dev="hdc"/>
        <serial>7379756e-e435-40ad-8f0c-de43b0adcac4</serial>
      </disk>

  but if i restart the vm from the dashboard  the libvirt.xml is
  modified and looks like, the target bus is changed from "ide" to
  virtio" so the vm cant boot anymore because of partition table ... :

   <disk type="file" device="disk">
        <driver name="qemu" type="qcow2" cache="none"/>
        <source file="/var/lib/nova/instances/a8a255cd-0b60-436d-ae71-e00f28e725bd/disk"/>
        <target bus="virtio" dev="hda"/>
      </disk>
      <disk type="block" device="disk">
        <driver name="qemu" type="raw" cache="none"/>
        <source dev="/dev/disk/by-path/ip-192.168.60.23:3260-iscsi-iqn.2010-10.org.openstack:volume-8d8a2e6d-9c7e-4905-b194-8a74b6ae6c42-lun-1"/>
        <target bus="ide" dev="hdb"/>
        <serial>8d8a2e6d-9c7e-4905-b194-8a74b6ae6c42</serial>
      </disk>
      <disk type="block" device="disk">
        <driver name="qemu" type="raw" cache="none"/>
        <source dev="/dev/disk/by-path/ip-192.168.60.23:3260-iscsi-iqn.2010-10.org.openstack:volume-7379756e-e435-40ad-8f0c-de43b0adcac4-lun-1"/>
        <target bus="ide" dev="hdc"/>
        <serial>7379756e-e435-40ad-8f0c-de43b0adcac4</serial>
      </disk>

  
  i ve tried to set libvirt_disk_prefix=hd (even if it not seems possible value..) into /etc/nova/nova.conf

  i ve  set some metadata on boot disk image  => disk_bus, disk_dev,
  hw_disk_bus  without success

  +------------------------+--------------------------------------+
  | Property               | Value                                |
  +------------------------+--------------------------------------+
  | Property 'disk_bus'    | ide                                  |
  | Property 'disk_dev'    | hda                                  |
  | Property 'hw_disk_bus' | ide                                  |
  | checksum               | 29bd44d6edd8358d6b74967ab7eaf526     |
  | container_format       | bare                                 |
  | created_at             | 2014-01-21T12:41:29                  |
  | deleted                | False                                |
  | deleted_at             | None                                 |
  | disk_format            | qcow2                                |
  | id                     | c5813703-2bfb-4f58-b0f1-9cd08fb8e596 |
  | is_public              | True                                 |
  | min_disk               | 0                                    |
  | min_ram                | 0                                    |
  | name                   | vcdn_mn_img0                         |
  | owner                  | None                                 |
  | protected              | False                                |
  | size                   | 915537920                            |
  | status                 | active                               |
  | updated_at             | 2014-01-22T10:24:35                  |
  +------------------------+--------------------------------------+

  i ve tried some modification tests into /usr/lib/python2.6/site-
  packages/nova/virt/libvirt/blockinfo.py but without success


  thanks for your help 
  KR

  Philippe

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