[Buildroot] [PATCH v4 0/7] Support building a second Barebox config (incl. BBB)

[Pieter Smith <pieter@boesman.nl>]

Hi Peter,

On Sun, Apr 24, 2016 at 09:18:44PM +0200, Peter Korsgaard wrote:
> >>>>> "Thomas" == Thomas Petazzoni <thomas.petazzoni@free-electrons.com> writes:
> 
> Hi,
> 
> >> If I copy your images (MLO, barebox.bin) directly to the FAT
>  >> partition, everything starts as expected. But I dd boot.vfat, the
>  >> system doesn't boot and shows only CCCCC, though I have no problems
>  >> mounting the first partition in Linux.
>  >> 
>  >> sudo dd if=/tmp/boot.vfat of=/dev/sdd1 bs=1M
> 
>  > So this means that the Barebox build is OK, and only the genimage part
>  > is causing problems. But this doesn't prevent from merging the barebox
>  > aspects of the series (patches 1 to 6), which are really the important
>  > part. The last patch is really more a defconfig proving that it works,
>  > I am not even sure that in practice we want to merge a defconfig for
>  > BeagleBone that is just different from beaglebone_defconfig in the fact
>  > that it uses Barebox instead of U-Boot. Peter?
> 
>  > Peter, I think you looked at using genimage on AM335x, what were your
>  > conclusion? On OMAP3, there were some very strict geometry restrictions
>  > in the romcode, but I don't remember if your conclusion is that they
>  > also apply to AM335x or not.
> 
> The rom code afaik checks that the partition size matches exactly with
> the size of the fat file system, so just dd'ing a fat fs image to an
> existing partition is unlikely to work:

Thanks! That explains what I have been observing. Everything works well if you
have genimage generate a full SD card image, MBR and all.

[snip]

- Pieter