2009/12/17 Kevin Wolf <kwolf@xxxxxxxxxx>: > Am 17.12.2009 11:23, schrieb Avi Kivity: >> On 12/17/2009 11:38 AM, Kenni Lund wrote: >>> 2009/12/17 Avi Kivity<avi@xxxxxxxxxx>: >>> >>>> On 12/17/2009 02:52 AM, Kenni Lund wrote: >>>> >>>>> Yesterday I entered an invalid boot device as an argument to my >>>>> qemu-kvm command for my Windows XP machine, causing an error about a >>>>> missing boot device in the qemu BIOS/POST. As I didn't have any >>>>> filesystems mounted inside the virtual machine (since it was stuck at >>>>> the BIOS asking for a device to boot), I did a kill $pid, fixed the >>>>> boot device in the qemu-kvm command and tried booting again...but with >>>>> no luck, whatever I try now with qemu-kvm gives me the error: >>>>> qemu: could not open disk image /data/virtualization/WindowsXP.img >>>>> >>>>> And qemu-img (check, convert, etc) gives me: >>>>> qemu-img: Could not open 'WindowsXP.img' >>>>> >>>>> >>>> Can you post the first 4K of the image? It shouldn't contain private data, >>>> but go over it (or don't post) if you sensitive information there. >>>> >>> 4K dump attached. >>> >>> >> >> Seems fine. Kevin can you take a look? > > Agreed, the dump looks fine. Even qcow2_open succeeds if I just use this > header as a qcow2 file. > >> You have a backing file. Do qemu-img info and qemu-img check like it? > > So I'd definitely have a look at the backing file. It's almost the only > thing that can go wrong after qcow2_open. qemu-img doesn't have known > problems with backing files in general, but it does have problems with > missing (or broken) backing files. > > Kenni, could you check if your backing file is still alive? /tmp doesn't > sound like a safe place for images. If it still exists in the right > location (/tmp/WindowsXP.img.backup) and it is qcow2, can you please > attach the first 4k of the backing file? > > Kevin > Huh? Backing file? Is that the same as a base image? Eg. a write protected image on which other images can be based? If so, I'm quite confused...this should be a standalone image created with a command like "qemu-img create -f WindowsXP.img 50G" half a year ago on kvm 8x. I don't use libvirt/virt-manager etc. I start qemu-kvm directly from a homemade bash script. I don't have any /tmp/WindowsXP.img.backup file, and I would never put stuff inside /tmp, especially not images, they belong to /data/virtualization/ on my server and nowhere else.... If the image needs another image in /tmp/WindowsXP.img.backup I can see why it doesn't work, but I have _no_ idea why or how this file was created (?!??) - even if I was doing a test with base-images, I would do it directly in /data/virtualization/ and never in /tmp/ Best Regards Kenni Lund -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
