[yocto] [meta-raspberrypi] du giving non-integer result?

[Khem Raj]

> On Sep 6, 2015, at 7:40 PM, Trevor Woerner <twoerner at gmail.com> wrote:
> 
> I can't explain why, but when I build "core-image-minimal" for
> MACHINE=raspberrpi2 I get the following SD creation error:
> 

which shell do you use for /bin/sh

>    ERROR: Error: The image creation script
>    '/z/layerindex-master/raspi2/tmp/work/raspberrypi2-poky-linux-gnueabi/core-image-minimal/1.0-r0/temp/create_image.rpi-sdimg'
>    returned 2:
>    expr: non-integer argument
>    WARNING:
>    /z/layerindex-master/raspi2/tmp/work/raspberrypi2-poky-linux-gnueabi/core-image-minimal/1.0-r0/temp/create_image.rpi-sdimg:1
>    exit 2 from
>      ROOTFS_SIZE_ALIGNED=$(expr 12288.0 + 4096 - 1)
> 
> 
> Looking at meta-raspberrypi/classes/sdcard_image-rpi.bbclass, line 83:
> 
>    ROOTFS_SIZE_ALIGNED=$(expr ${ROOTFS_SIZE} +
> ${IMAGE_ROOTFS_ALIGNMENT} - 1)
> 
> which looks like the offending line. ROOTFS_SIZE seems to come from the
> line immediately above:
> 
>    ROOTFS_SIZE=`du -bks ${SDIMG_ROOTFS} | awk '{print $1}'`
> 
> But 'du' doesn't return non-integer values, does it? When I invoke the
> host's 'du' I get the correct value:
> 
>    du -bks
> /z/layerindex-master/raspi2/tmp/deploy/images/raspberrypi2/core-image-minimal-raspberrypi2-20150906234844.rootfs.ext3
> | awk '{print $1}'
>    12288
> 
> Does anyone have any idea why the ".0" is getting tacked on?
> 
> Best regards,
>    Trevor
> --
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