Comment 18 for bug 691609

Hi,

That did the trick! Thanks!
The guest has been correctly started and network is working fine.

raj

On Tue, Dec 21, 2010 at 7:36 PM, Serge Hallyn <email address hidden> wrote:
> As you'd observed from the start, I suspect we need to drop the 'format=raw'
> from the command.  Please add the following to the disk definition in your
> .xml file (i.e. virsh edit a1.6-q2.log):
>
>      <driver name='qemu' type='qcow2'/>
>
> So the whole disk definition will probably look like:
>
> <disk type="file" device="disk">
>        <source file="/var/kvm/a1.6-q2.img"/>
>        <driver name='qemu' type='qcow2'/>
>        <target dev="hda" bus="ide"/>
> </disk>
>
> --
> You received this bug notification because you are a direct subscriber
> of the bug.
> https://bugs.launchpad.net/bugs/691609
>
> Title:
>  Cannot migrate a VM from Ubuntu 9.04 to Ubuntu 10.04.1 LTS
>
> Status in “libvirt” package in Ubuntu:
>  Incomplete
>
> Bug description:
>  Hi bug masters,
>
> I have a Ubuntu 9.04 server running virtualization with many guests. The guests are defined by an xml file (attached) in /etc/libvirt/qemu and started by virsh  start  "domain name". The guests are using a qcow2 type disks. I want to upgrade this server to Ubuntu 10.04.1 LTS and to test if all my guests can be safely migrated over to new server I have installed lucid in a similar server and copied over the disk image and config xml. I created the domain using virsh create "domain xml file" (after making changes to IP address, mac address and source file location). When I start the VM using virsh  start  "domain name" I get an error in the vnc console (screen shot attached).
>
> The disk image I copied from old server is running fine in that server. I have also tried with another disk image, in case the first image is corrupted, and result is the same.
>
> Actual kvm command in the new server (lucid) is as follows:
>
> /usr/bin/kvm -S -M pc-0.12 -enable-kvm -m 256 -smp 1 -name a1.6-q2 -uuid 9f58079c-057f-5726-4daa-3d30888d7bbe -chardev socket,id=monitor,path=/var/lib/libvirt/qemu/a1.6-q2.monitor,server,nowait -monitor chardev:monitor -localtime -boot c -drive file=/var/kvm/a1.6-q2.img,if=ide,index=0,boot=on,format=raw -net nic,macaddr=52:54:00:13:34:42,vlan=0,name=nic.0 -net tap,fd=42,vlan=0,name=tap.0 -chardev pty,id=serial0 -serial chardev:serial0 -parallel none -usb -vnc 192.168.3.7:42 -vga cirrus
>
> In old server (jaunty):
>
> /usr/bin/kvm -S -M pc -m 384 -smp 1 -name alex2 -uuid 4c949839-9c2d-6c31-8bfb-1b0b0504f92e -monitor pty -pidfile /var/run/libvirt/qemu//alex2.pid -localtime -boot c -drive file=/usr/local/var/kvm/alex2.img,if=ide,index=0,boot=on -net nic,macaddr=52:54:00:12:34:49,vlan=0 -net tap,fd=28,script=,vlan=0,ifname=vnet6 -serial pty -parallel none -usb -vnc 192.168.3.3:49
>
> One difference I noted was that the -drive option has an extra argument "format=raw" which looks odd because the image I am using is qcow2 in format.
>
> Running the kvm command line directly from console in new server resulted in the following error:
>
> /usr/bin/kvm -S -M pc-0.12 -enable-kvm -m 256 -smp 1 -name a1.6-q2 -uuid 9f58079c-057f-5726-4daa-3d30888d7bbe -chardev socket,id=monitor,path=/var/lib/libvirt/qemu/a1.6-q2.monitor,server,nowait -monitor chardev:monitor -localtime -boot c -drive file=/var/kvm/a1.6-q2.img,if=ide,index=0,boot=on -net nic,macaddr=52:54:00:13:34:42,vlan=0,name=nic.0 -net tap,fd=42,vlan=0,name=tap.0 -chardev pty,id=serial0 -serial chardev:serial0 -parallel none -usb -vnc 192.168.3.7:42 -vga cirrus
> char device redirected to /dev/pts/4
> TUNGETIFF ioctl() failed: Bad file descriptor
> TUNSETOFFLOAD ioctl() failed: Bad file descriptor
> pci_add_option_rom: failed to find romfile "pxe-rtl8139.bin"
>
> So I could not test with "format=qcow2" in -drive option.
>
> Pl let me know if any further information is required to traig this issue.
>
> with regards,
>
> raj
>
> To unsubscribe from this bug, go to:
> https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/691609/+subscribe
>