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    SubjectRe: [PATCH] KVM: Add wrapper script around QEMU to test kernels
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    On Mon, Nov 7, 2011 at 12:11 PM, Gerd Hoffmann <kraxel@redhat.com> wrote:
    > No support for booting from CDROM.
    > No support for booting from Network.
    > Thus no way to install a new guest image.

    Sure. It's a pain point which we need to fix.

    On Mon, Nov 7, 2011 at 12:11 PM, Gerd Hoffmann <kraxel@redhat.com> wrote:
    > Booting an existing qcow2 guest image failed, the guest started throwing
    > I/O errors.  And even to try that I had to manually extract the kernel
    > and initrd images from the guest.  Maybe you should check with the Xen
    > guys, they have a funky 'pygrub' which sort-of automates the
    > copy-kernel-from-guest-image process.

    QCOW2 support is experimental. The I/O errors are caused by forced
    read-only mode.

    On Mon, Nov 7, 2011 at 12:11 PM, Gerd Hoffmann <kraxel@redhat.com> wrote:
    > Booting the host kernel failed too.  Standard distro kernel.  The virtio
    > bits are modular, not statically compiled into the kernel.  kvm tool
    > can't handle that.

    I think we have some support for booting modular distro kernels too if
    you tell KVM tool where to find initrd. It sucks out-of-the-box though
    because nobody seems to be using it.

    On Mon, Nov 7, 2011 at 12:11 PM, Gerd Hoffmann <kraxel@redhat.com> wrote:
    > You have to build your own kernel and make sure you flip the correct
    > config bits, then you can boot it to a shell prompt.  Trying anything
    > else just doesn't work today ...

    What can I say? Patches welcome? :-)

    Pekka
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