Re: [poky] runqemu on genericarm64: "u-boot.bin not found" error

[Michael Opdenacker <michael.opdenacker@rootcommit.com>]

Hi Ross,

Thanks for these details!

On 1/27/25 12:47, Ross Burton wrote:
> On 27 Jan 2025, at 11:27, Michael Opdenacker via lists.yoctoproject.org <michael.opdenacker=rootcommit.com@lists.yoctoproject.org> wrote:
>> Ross, all,
>>
>> Probably not a surprise for some of you, but I figured it's good to report this somewhere:
>>
>> I generated an image for the "genericarm64" machine, and when trying to use the "runqemu" command, I get this error:
>>
>> $ runqemu nographic slirp
>> runqemu - INFO - Running bitbake -e  ...
>> runqemu - ERROR - BIOS /home/mike/work/yocto/master/poky/build-genericarm64/tmp/deploy/images/genericarm64/u-boot.bin not found
>> runqemu - INFO - Cleaning up
>> runqemu - INFO - Host uptime: 670446.07
>>
>> That's not a surprise, as the bootloader for this image is based on grub.
>>
>> I tried to modify meta-yocto-bsp/conf/machine/genericarm64.conf to use the "grub-efi-bootaa64.efi" file instead. However, while runqemu doesn't complain any more, the virtual machine doesn't seem to boot.
>>
>> Any workaround for testing the "genericarm64" machine through the "runqemu" script?
>>
>> In the long run, it would be great if the normal "runqemu" command worked out of the box.
>  From the genericarm64 README:
>
> There is also limited support for booting a genericarm64 image inside QEMU. When
> building the image also build the `u-boot` recipe to build the required
> firmware (note that this firmware will _not_ boot on real hardware), then use
> `runqemu` as usual.
>
> That uboot will then chainload into grub.
>
> I don’t think it’s appropriate to always build the uboot because there’s a risk that people will think it’s suitable for the target hardware, when it’s only useful with a qemu.


Understood! Indeed the following does the trick:
IMAGE_INSTALL:append = " u-boot"

Thanks again
Michael.

-- 
Michael Opdenacker
Root Commit
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