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** Changed in: nova
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** Changed in: nova
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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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