padding of large 16-32GB images [Was: Re: [PATCH 2/5] build: image: Add pad-to and pad-rootfs-squashfs helpers]

[Nishant Sharma]

Hi Petr,

On 01/04/24 15:58, Petr Štetiar wrote:
>> dd: memory exhausted by input buffer of size 16642998272 bytes (16 GiB)
> 
> can you check https://patchwork.ozlabs.org/project/openwrt/patch/20240401102511.495791-1-ynezz@true.cz/ ? Thanks!

Thanks a lot for the fix.

I tested it by building a 16GB squashfs EFI image for x86_64 on a host 
with just 8GB of RAM and build was successful without any errors.

But, it takes a lot of time (around 20 minutes) writing this image to 
the device, which I suspect is due to padding. Earlier, it used to take 
less than 2 minutes.

Is it possible to get "CONFIG_TARGET_IMAGES_PAD" back or some other 
switch that can be flipped to disable padding for images?

Regards,
Nishant