Re: [Qemu-devel] [Bug 784977] [NEW] qemu-img convert fails to convert, generates a 512byte file output

[Stefan Hajnoczi <stefanha@gmail.com>]

On Thu, May 19, 2011 at 5:17 AM, Andy Brook <javahollic@gmail.com> wrote:
> Public bug reported:
>
> I have a Vmware image, so I have files like 'Ubuntu.vmdk', want to
> convert to VirtualBox .vdi format using qemu, the first stage of
> extracting the image with 'qemu-img convert Ubuntu.vmdk output.bin' just
> generates a 512byte file:
>
> {quote}
> # Disk DescriptorFile
> version=1
> CID=36be9761
> parentCID=ffffffff
> createType="twoGbMaxExtentSparse"
>
> # Extent description
> RW 4192256 SPARSE "Ubuntu-s001.vmdk"
> RW 4192256 SPARSE "Ubuntu-s002.vmdk"
> RW 4192256 SPARSE "Ubuntu-s003.vmdk"
> RW 4192256 SPARSE "Ubuntu-s004.vmdk"
> RW 4192256 SPARSE "Ubuntu-s005.vmdk"
> RW 4192256 SPARSE "Ubuntu-s006.vmdk"
> RW 4192256 SPARSE "Ubuntu-s007.vmdk"
> RW 4192256 SPARSE "Ubuntu-s008.vmdk"
> RW 4192256 SPARSE "Ubuntu-s009.vmdk"
> RW 4192256 SPARSE "Ubuntu-s010.vmdk"
> RW 20480 SPARSE "Ubunt
> {quote}
>
> Here is the input Ubuntu.vmdk file:
> {quote}
> # Disk DescriptorFile
> version=1
> CID=36be9761
> parentCID=ffffffff
> createType="twoGbMaxExtentSparse"
>
> # Extent description
> RW 4192256 SPARSE "Ubuntu-s001.vmdk"
> RW 4192256 SPARSE "Ubuntu-s002.vmdk"
> RW 4192256 SPARSE "Ubuntu-s003.vmdk"
> RW 4192256 SPARSE "Ubuntu-s004.vmdk"
> RW 4192256 SPARSE "Ubuntu-s005.vmdk"
> RW 4192256 SPARSE "Ubuntu-s006.vmdk"
> RW 4192256 SPARSE "Ubuntu-s007.vmdk"
> RW 4192256 SPARSE "Ubuntu-s008.vmdk"
> RW 4192256 SPARSE "Ubuntu-s009.vmdk"
> RW 4192256 SPARSE "Ubuntu-s010.vmdk"
> RW 20480 SPARSE "Ubuntu-s011.vmdk"
>
> # The Disk Data Base
> #DDB
>
> ddb.toolsVersion = "7240"
> ddb.adapterType = "lsilogic"
> ddb.geometry.sectors = "63"
> ddb.geometry.heads = "255"
> ddb.geometry.cylinders = "2610"
> ddb.virtualHWVersion = "6"
> {quote}
>
> No stack trace or other output was found.  Anything I can add (other
> than the 20G VM image to reproduce and I'll be happy to provide)

Please post the output of "qemu-img info Ubuntu.vmdk".  I suspect this
image file is not being recognized as vmdk and is being treated as a
raw image, hence the literal copy of its 512-byte sector size
contents.

I have CCed Fam who is working on VMDK image format improvements and
may be able to help here.

Stefan