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Date: Tue, 10 Jun 2014 19:26:47 +0200
From: Laszlo Ersek <lersek@redhat.com>
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Subject: Re: [Qemu-devel] Booting a guest with OVMF
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To: Kashyap Chamarthy <kchamart@redhat.com>
Cc: pbonzini@redhat.com, Peter Jones <pjones@redhat.com>, qemu-devel@nongnu.org

On 06/10/14 18:10, Kashyap Chamarthy wrote:

> This is disk image #3:
> 
>     http://download.fedoraproject.org/pub/fedora/linux/updates/20/Images/x86_64/Fedora-x86_64-20-20140407-sda.qcow2

As I suspected, this disk image is inapproprite for UEFI virtual machines.

$ guestfish --ro -a Fedora-x86_64-20-20140407-sda.qcow2
><fs> launch
><fs> list-filesystems
/dev/sda1: ext4

It has no EFI system partition.

The image must have been prepared for BIOS machines. (For VMs that
implies SeaBIOS, not OVMF.)

-o-

For cases #1 and #2, I looked into
<http://people.freedesktop.org/~kay/installer/installer.sh>. It
- formats an EFI system partition as FAT32 alright,
- mounts it as "/run/installer-$ROOT/system/boot",
- does some other stuff,
- and then executes

  chroot /run/installer-$ROOT/system/ gummiboot install --no-variables

I assume something goes wrong in this step (ie. the ESP won't contain
any gummiboot binary under EFI/BOOT/BOOTX64.EFI).

"install.sh" seems to support formatting regular files -- that should
allow you to both upload one for inspection (eg. with guestfish, see
above), and also to test it with qemu (without needing a USB stick).

Thanks
Laszlo