Re: [PATCH 3/4] linux-custom: Use uncompressed kernel image on arm64

[Jan Kiszka <jan.kiszka@siemens.com>]

On 2018-08-27 10:29, Henning Schild wrote:
> Am Mon, 27 Aug 2018 09:19:54 +0200
> schrieb "[ext] Jan Kiszka" <jan.kiszka@siemens.com>:
> 
>> From: Jan Kiszka <jan.kiszka@siemens.com>
>>
>> U-Boot does not directly support decompression on bootloader side like
>> Image.gz would require. We would have to enable the unzip command and
>> write special scripts that perform the decompression prior to calling
>> booti. As the Debian kernel also comes uncompressed, choose that path
>> instead.
>>
>> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
>> ---
>>   meta/recipes-kernel/linux/files/build-kernel.sh | 7 +++++++
>>   1 file changed, 7 insertions(+)
>>
>> diff --git a/meta/recipes-kernel/linux/files/build-kernel.sh
>> b/meta/recipes-kernel/linux/files/build-kernel.sh index
>> 8b58e93..ef30aea 100644 ---
>> a/meta/recipes-kernel/linux/files/build-kernel.sh +++
>> b/meta/recipes-kernel/linux/files/build-kernel.sh @@ -95,6 +95,13 @@
>> if [ \"\$1\" != upgrade ] && command -v linux-update-symlinks
>>> /dev/null; then\\ linux-update-symlinks remove
>>> ${PV}  /boot/vmlinuz-${PV}\\ fi"
>>   
>> +# Make sure arm64 kernels are decompressed
>> +if [ "$target_arch" = "arm64" ]; then
>> +	vmlinuz=${REPACK_LINUX_IMAGE_DIR}/boot/vmlinuz-${PV}
>> +	mv $vmlinuz $vmlinuz.gz
>> +	gunzip $vmlinuz
>> +fi
> 
> That looks weird. The gunzip should not work after the mv. And would is
> the filename after the intended patch? If it still contains a "z", that
> would be misleading.

gunzip appends .gz. We maybe that also works explicitly, didn't test.

The filename follows Debian style, I douple-checked the upstream package.

Jan

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