[one-users] 'No bootable device' with ON 3.6 (was ok with 3.4)

[Valerio Schiavoni]

Hello,
after an upgrade from 3.4 to 3.6 an upgrade of the host machine OS
(from ubuntu 10.x to 12.04LTS), whenever  we try to instantiate one of
the previously working VM templates,
we get a 'Not bootable device' problem.

onevm show reports the following, showing that the VM has a disk attached to it:

$ onevm show 146
VIRTUAL MACHINE 146 INFORMATION
ID                  : 146
NAME                : one-146
USER                : oneadmin
GROUP               : oneadmin
STATE               : ACTIVE
LCM_STATE           : RUNNING
RESCHED             : No
HOST                : newcluster-10
START TIME          : 07/29 12:11:44
END TIME            : -
DEPLOY ID           : one-146

VIRTUAL MACHINE MONITORING
USED CPU            : 0
NET_TX              : 0K
USED MEMORY         : 0K
NET_RX              : 0K

PERMISSIONS
OWNER               : um-
GROUP               : ---
OTHER               : ---

VIRTUAL MACHINE TEMPLATE
CPU="8"
DISK=[
  BUS="ide",
  CLONE="YES",
  CLUSTER_ID="100",
  DATASTORE="newcluster-datastore",
  DATASTORE_ID="100",
  DEV_PREFIX="sd",
  DISK_ID="0",
  DRIVER="raw",
  IMAGE="ubuntu-opennebula",
  IMAGE_ID="14",
  IMAGE_UNAME="oneadmin",
  READONLY="NO",
  SAVE="NO",
  SOURCE="/var/lib/one/datastores/100/fe443cbe526535425000d7b449730d55",
  TARGET="sda",
  TM_MAD="ssh",
  TYPE="FILE" ]
GRAPHICS=[
  LISTEN="0.0.0.0",
  PORT="6046",
  TYPE="vnc" ]
MEMORY="4096"
NAME="one-146"
NIC=[
  BRIDGE="onebr13",
  IP="10.0.0.2",
  MAC="02:00:0a:00:00:02",
  MODEL="virtio",
  NETWORK="vlan-2000",
  NETWORK_ID="13",
  NETWORK_UNAME="oneadmin",
  PHYDEV="eth0",
  VLAN="YES",
  VLAN_ID="2000" ]
OS=[
  ARCH="i686",
  BOOT="hd" ]
RAW=[
  TYPE="kvm" ]
REQUIREMENTS="CLUSTER_ID = 100"
TEMPLATE_ID="42"
VCPU="8"
VMID="146"

VIRTUAL MACHINE HISTORY
 SEQ HOST            REASON           START            TIME     PROLOG_TIME
   0 newcluster-10   none    07/29 12:12:03    0d 00h10m49s    0d 00h03m16s


In attachment, what it is shown  via the VNC session.
Do I have to update my templates to make them 3.6-compatible somehow?
Do I have to re-upload the ubuntu-opennebula image in the datastore ?

Best regards,
Valerio
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