[one-users] qcow image problem

[Luca Lorenzini]

Hi i'm using OpenNebula 1.4 with libvirtd 0.7.5. I'm using an
ubuntu-10.4-desktop installation for my VMs and i'm trying to use qcow2 file
system for the images. I said try because when i submit the template i get
fail status and error message. I installed ubuntu on a 4GB raw image and, to
save disk space, i converted it in qcow2 with the option "backing_file" to
keep it safe (qemu-img create -f qcow2 -o backing_file=ubuntu.img
ubuntu.qcow). When i use the raw image it will works fine, but if i use the
qcow2 image i get the error listed below.I noticed that changing in the
deploying file the disk path to the qcow2 image and submitting the Vm
with "virsh
--connect qemu:///system create /var/lib/one//25/deployment.0" command it
works. So, what's the problem?

--------------------------------
LOG FILE
--------------------------------
Tue Sep 21 17:23:15 2010 [DiM][I]: New VM state is ACTIVE.
Tue Sep 21 17:23:16 2010 [LCM][I]: New VM state is PROLOG.
Tue Sep 21 17:23:16 2010 [VM][I]: Virtual Machine has no context
Tue Sep 21 17:23:16 2010 [TM][I]: tm_ln.sh: Creating directory
/var/lib/one/25/images
Tue Sep 21 17:23:16 2010 [TM][I]: tm_ln.sh: Executed "mkdir -p
/var/lib/one/25/images".
Tue Sep 21 17:23:16 2010 [TM][I]: tm_ln.sh: Executed "chmod a+w
/var/lib/one/25/images".
Tue Sep 21 17:23:16 2010 [TM][I]: tm_ln.sh: Link
/home/luca/images/ubuntu.img
Tue Sep 21 17:23:16 2010 [TM][I]: tm_ln.sh: Executed "ln -s
/home/luca/images/ubuntu.qcow2 /var/lib/one/25/images/disk.0".
Tue Sep 21 17:23:16 2010 [LCM][I]: New VM state is BOOT
Tue Sep 21 17:23:16 2010 [VMM][I]: Generating deployment file:
/var/lib/one/25/deployment.0
Tue Sep 21 17:23:47 2010 [VMM][I]: Command execution fail: 'mkdir -p
/var/lib/one//25/images && cat > /var/lib/one//25/images/deployment.0 &&
virsh --connect qemu:///system create /var/lib/one//25/images/deployment.0'
Tue Sep 21 17:23:47 2010 [VMM][I]: STDERR follows.
Tue Sep 21 17:23:47 2010 [VMM][I]: error: Failed to create domain from
/var/lib/one//25/images/deployment.0
Tue Sep 21 17:23:47 2010 [VMM][I]: error: monitor socket did not show up.:
Connection refused
Tue Sep 21 17:23:47 2010 [VMM][I]: ExitCode: 1
Tue Sep 21 17:23:47 2010 [VMM][E]: Error deploying virtual machine
Tue Sep 21 17:23:48 2010 [DiM][I]: New VM state is FAILED
Tue Sep 21 17:23:48 2010 [TM][W]: Ignored: LOG - 25 tm_delete.sh: Deleting
/var/lib/one/25/images

Tue Sep 21 17:23:48 2010 [TM][W]: Ignored: LOG - 25 tm_delete.sh: Executed
"rm -rf /var/lib/one/25/images".

Tue Sep 21 17:23:48 2010 [TM][W]: Ignored: TRANSFER SUCCESS 25
--------------------------------
TEMPLATE FILE
--------------------------------

NAME   = ubuntu-desk.qcow2
MEMORY = 1024
CPU=1.0

OS = [
boot="hd",
kernel="/vmlinuz",
initrd="/initrd.img",
root="sda1"
]

DISK = [
  source = "/home/luca/images/ubuntu.qcow2",
  target   = "sda",
  readonly = "no",
  clone = "no"
]

INPUT = [ type = "tablet", bus = "usb" ]
GRAPHICS = [TYPE = "vnc", LISTEN = "localhost", PORT = 5913]
NIC    = [ NETWORK = "private" ]

FEATURES=[ acpi="no" ]



--------------------------------
DEPLOY FILE GENERATED
--------------------------------

<domain type='kvm'>
    <name>one-25</name>
    <memory>1048576</memory>
    <os>
        <type>hvm</type>
        <kernel>/vmlinuz</kernel>
        <initrd>/initrd.img</initrd>
        <cmdline>root=/dev/sda1 </cmdline>
        <boot dev='hd'/>
    </os>
    <devices>
        <emulator>/usr/bin/kvm</emulator>
        <disk type='file' device='disk'>
            <source file='/var/lib/one//25/images/disk.0'/>
            <target dev='sda'/>
        </disk>
        <interface type='bridge'>
            <source bridge='virbr0'/>
            <mac address='00:03:c0:a8:7a:07'/>
        </interface>
        <graphics type='vnc' listen='localhost' port='5913'/>
        <input type='tablet' bus='usb'/>
    </devices>
</domain>


Luca
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