OpenNebula

OpenNebula says the disk image is not in qcow2 format but it is. it is in qcow2 format; I had made it by issuing a 'qemu-img convert' command

oneadmin@0-h0:~$ oned --version

Copyright 2002-2016, OpenNebula Project, OpenNebula Systems

OpenNebula 5.0.2 is distributed and licensed for use under the terms of the
Apache License, Version 2.0 (http://www.apache.org/licenses/LICENSE-2.0).

/var/log/one/oned.log :
(After trying 'onetemplate instantiate win-2k8-r2-contextualized --name win2k8r2-qcow2')

Thu Sep 29 23:45:40 2016 [Z0][VMM][D]: Message received: LOG I 60 Command execution fail: cat << EOT | /var/tmp/one/vmm/kvm/deploy '/var/lib/one//datastores/101/60/deployment.0' '116.193.90.131' 60 116.193.90.131
Thu Sep 29 23:45:40 2016 [Z0][VMM][D]: Message received: LOG I 60 error: Failed to create domain from /var/lib/one//datastores/101/60/deployment.0
Thu Sep 29 23:45:40 2016 [Z0][VMM][D]: Message received: LOG I 60 error: internal error: process exited while connecting to monitor: 2016-09-29T14:45:40.173804Z qemu-system-x86_64: -drive file=/var/lib/one//datastores/101/60/disk.0,if=none,id=drive-virtio-disk0,format=qcow2,cache=none: could not open disk image /var/lib/one//datastores/101/60/disk.0: Image is not in qcow2 format
Thu Sep 29 23:45:40 2016 [Z0][VMM][D]: Message received: LOG I 60
Thu Sep 29 23:45:40 2016 [Z0][VMM][D]: Message received: LOG E 60 Could not create domain from /var/lib/one//datastores/101/60/deployment.0
Thu Sep 29 23:45:40 2016 [Z0][VMM][D]: Message received: LOG I 60 ExitCode: 255
Thu Sep 29 23:45:40 2016 [Z0][VMM][D]: Message received: LOG I 60 Failed to execute virtualization driver operation: deploy.
Thu Sep 29 23:45:40 2016 [Z0][VMM][D]: Message received: DEPLOY FAILURE 60 Could not create domain from /var/lib/one//datastores/101/60/deployment.0

oneadmin@0-h0:~$ oneimage show win2k8r2-160926-qcow2

IMAGE 29 INFORMATION
ID : 29
NAME : win2k8r2-160926-qcow2
USER : oneadmin
GROUP : oneadmin
DATASTORE : ids0000000000
TYPE : OS
REGISTER TIME : 09/29 13:12:46
PERSISTENT : No
SOURCE : /var/lib/one//datastores/100/43f1b10c584a14eed95a22290b2bd757
PATH : /var/lib/one/safe/win2k8r2-20160927.qcow2
FSTYPE : qcow2
SIZE : 40G
STATE : rdy
RUNNING_VMS : 0

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

IMAGE TEMPLATE
DESCRIPTION="Windows Server 2008 R2 20160926-qcow2"
DEV_PREFIX="hd"
DRIVER="qcow2"

VIRTUAL MACHINES

oneadmin@0-h0:~$ qemu-img info /var/lib/one/datastores/100/43f1b10c584a14eed95a22290b2bd757

image: /var/lib/one/datastores/100/43f1b10c584a14eed95a22290b2bd757
file format: qcow2
virtual size: 40G (42949672960 bytes)
disk size: 27G
cluster_size: 65536
Format specific information:
compat: 1.1
lazy refcounts: false

oneadmin@0-h0:~$ onetemplate show win-2k8-r2-contextualized

TEMPLATE 15 INFORMATION
ID : 15
NAME : win-2k8-r2-contextualized
USER : oneadmin
GROUP : oneadmin
REGISTER TIME : 07/15 17:36:03

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

TEMPLATE CONTENTS
CONTEXT=[
FILES_DS="$FILE[IMAGE_ID=13]",
FORGODSAKE="\"nomnomnom\"",
HELLO_WORLD="$HELLO_WORLD",
NETWORK="YES",
REPORT_READY="YES",
SSH_PUBLIC_KEY="$USER[SSH_PUBLIC_KEY]",
START_SCRIPT="#!/bin/sh
echo 'ss' > /ss.txt
export TESTASAKE='thanks'
",
TOKEN="YES" ]
CPU="0.5"
CPU_COST="0.05"
DISK=[
CACHE="none",
DEV_PREFIX="vd",
DRIVER="qcow2",
IMAGE="win2k8r2-160926-qcow2",
IMAGE_UNAME="oneadmin",
SIZE="40960" ]
DISK_COST="0.00000005"
FEATURES=[
ACPI="yes",
PAE="yes" ]
GRAPHICS=[
LISTEN="0.0.0.0",
RANDOM_PASSWD="YES",
TYPE="VNC" ]
HYPERVISOR="kvm"
INPUT=[
BUS="usb",
TYPE="tablet" ]
LOGO="images/logos/windowsxp.png"
MEMORY="512"
MEMORY_COST="0.0000075"
NAME="win-2k8-r2-contextualized"
NIC=[
MODEL="virtio",
NETWORK="private_net-0-0-1",
NETWORK_UNAME="oneadmin",
SECURITY_GROUPS="0" ]
NIC_DEFAULT=[
MODEL="virtio" ]
OS=[
BOOT="disk0" ]
RAW=[
DATA="<clock offset='localtime'/>
<devices>
<controller type='usb' index='1' model='ehci' ports='8'/>
<controller type='usb' index='2' model='nec-xhci' ports='8'/>
</devices>
<clock offset='localtime'/>",
TYPE="kvm" ]
SCHED_DS_REQUIREMENTS="NAME=\"sds0000000000\""
USER_INPUTS=[
CPU="M|range-float||0.1..4.0|0.5",
HELLO_WORLD="M|list|for testing purposes|hi,hey,how are you,what'sup,how do you do,how's it going|hi",
MEMORY="M|range||512..8192|2048",
VCPU="M|range||1..4|1" ]

I believe there was another instance of this bug happened in the past: http://dev.opennebula.org/issues/4624