Thanks Laszlo, I will try grub debugging and let you know.
On Wed, Feb 6, 2013 at 9:55 PM, Laszlo Ersek <ler...@redhat.com> wrote:
> On 02/06/13 16:49, baban devkate wrote:
> > I am trying to install an OS *to* the NVMe storage (ie. booting the
> > installer from a CD-ROM, and selecting NVMe as target.
>
> To ask the obvious: have you tried sprinkling your driver with DEBUG
> messages? They should show up on the qemu debug port [1] (or the virtual
> serial console, if you build OVMF with -D DEBUG_ON_SERIAL_PORT).
>
> The next step (sub-project, actually) could be building a new installer
> image with debug messages & serial IO enabled for grub. I have no idea
> how to do that for Ubuntu, and even for Fedora I'd have to follow the
> wiki, so I can't readily help with this.
>
> Also, in my limited experience, grub debugging is a nightmare; you very
> quickly reach a spot where the built-in debug messages don't help any
> longer, and you must add new messages to the source. (But hey, at least
> you *have* the source, grub2 being GPLv3...)
>
> Laszlo
>
> [1] http://www.linux-kvm.org/page/OVMF#Saving_OVMF_debug_messages
>
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