[yocto] fitImage and initramfs

[Rick Altherr]

I was thinking that core-image-minimal-initramfs did something special to
avoid a dependency problem.  I just checked the recipe and it doesn't.
Everything in kernel-fitimage.bbclass seems to setup dependencies correctly
so that the INITRAMFS_IMAGE gets created before trying to bundle it.

The log message you posted ("Creating a kernel image with a bundled
initramfs....") comes from kernel.bbclass:do_bundle_initramfs() which is
for the zImage bundling.  fitImage bundling happens in
kernel-fitimage.bbclass:do_assemble_fitimage_initramfs() and doesn't print
anything to the logs.  Because of that, I can't tell which code path is
having a problem.  Please check the logs in the kernel recipe's work
directory, specifically the logs for those two tasks.  Hopefully they
describe more of where the problem is.

Rick

On Wed, Dec 21, 2016 at 10:11 AM, Hamish Guthrie <Hamish.Guthrie at kistler.com
> wrote:

> Hi Rick,
>
> >> What happens if you use core-image-minimal-initramfs for
> INITRAMFS_IMAGE?
>
> I just tried that and Yocto complains with Nothing PROVIDES
> 'core-image-minimal-initramfs'
>
> >> I think the main problem is that you are telling Yocto to include the
> full rootfs image as an initramfs instead of the reduced, special-purpose
> initramfs image.
>
> I am not sure that Yocto should give a damn about what I am trying to put
> into my initramfs, if I am stupid enough to include a 100G image into my
> initramfs, it is my problem, not Yocto's! If I am stupid enough to do that,
> knowing that I only have 256M RAM, I should be the one bitten!
>
> I have tried doing the same thing with a special reduced filesystem for
> our update software (which is about 4M, by the way), and I get the same
> error with (Unexpected end of input), so I do not believe for a moment it
> is the size of the initramfs. I suspect something in the kernel.bbclass,
> but for the life of me I cannot see why it would fail. It should just WORK!
>
> Hamish
>
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