On Mon, May 29, 2017 at 2:13 PM, Nicolas Dechesne
<nicolas.deche...@linaro.org> wrote:
> hi,
>
> i am trying to set KERNEL_IMAGETYPES="Image.gz" in my machine conf
> file. But it doesn't work. I am seeing this error during
> kernel_do_compile():
>
> run.do_compile.30019: cannot open Image: No such file
>
> In fact the code snippet that tries to compress the Image file into
> Image.gz expects the Image file to be in ${B}, but when compiling
> kernel Image is actually in ${B}/arch/arm64/boot:
>
> $ find tmp-rpb-glibc/work/dragonboard_410c-linaro-linux/linux-linaro-qcomlt/
> -name Image
> tmp-rpb-glibc/work/dragonboard_410c-linaro-linux/linux-linaro-qcomlt/4.9-r0/build/arch/arm64/boot/Image
>
> The piece of code in question is in kernel.bbclass:
>
> gzip -9c < "${typeformake}" > "${KERNEL_OUTPUT_DIR}/${type}"
> It really sounds to me like something obvious is missing, i doubt I
> would be the first one to try Image.gz..
You may be the first to try for a non-MIPS machine.
MIPS is a little special in that the MIPS kernel doesn't support self
extracting compressed kernels (zImage, etc), so MIPS machines are the
most likely to make use of a gzipped vmlinux image (which will then be
decompressed by the bootloader) and KERNEL_IMAGETYPES="vmlinux.gz"
works OK.
If a compressed kernel is required, most non-MIPS machines use a self
extracting image.
> Any thoughts?
>
> thanks
> nico
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