[yocto] qemu EFI build failure

[Josef Ahmad]

Darren,

Sorry for the delay in getting around to this.
I picked QEMU as a generic machine to build Grub for the only purpose
of testing build + boot.

Thanks for the hint for locally appending configuration variables.
Also, I've applying Nitin's automake patch and I confirm grub-efi
correctly builds and runs on Qemu (with TianoCore EFI BIOS).

Thanks

- Josef

On 12 January 2012 18:27, Darren Hart <dvhart at linux.intel.com> wrote:
>
>
> On 01/12/2012 08:19 AM, Josef Ahmad wrote:
>> I tried to build a qemux86 EFI image, by setting:
>> - in my local.conf: IMAGE_FSTYPES += "live"
>> - in poly/meta/conf/machine/qemux86.conf: MACHINE_FEATURES += "efi"
>>
>
> I haven't tried live images with QEMU. For one thing, they aren't really
> necessary as you can specify all the boot parameters on the qemu command
> line. Is there are reason you want to use the live image specifically?
>
> Also, in order to properly test EFI in QEMU, you will need to use an EFI
> BIOS - I believe you're aware of this already - but this isn't currently
> supported by the runqemu scripts that ship with yocto.
>
>> The build gave me the following error:
>
>
> I'll do some test builds - it isn't clear to me what is going on here.
>
> <snip>
>
>>
>>
>> Has anyone encountered the same error?  I'm not sure I set up the
>> correct configuration. Also, is there another way to append "efi" to
>> MACHINE_FEATURES rather than by modifying qemux86.conf?
>
> You should be able to do something like:
> MACHINE_FEATURES_append_qemux86 = "efi"
>
> Note that you will also need to enable the efi support in the kernel,
> which is done with the KERNEL_FEATURES variable, something like:
> KERNEL_FEATURES_append_qemux86 = "conf/efi-ext.scc"
>
> Either of these can be set in your local.conf.
>
>
> --
> Darren Hart
> Intel Open Source Technology Center
> Yocto Project - Linux Kernel
> _______________________________________________
> yocto mailing list
> yocto at yoctoproject.org
> https://lists.yoctoproject.org/listinfo/yocto