[Buildroot] [PATCH v2] board/freescale: switch create-boot-sd.sh to parted

[Arnout Vandecappelle <arnout@mind.be>]

On 21-10-15 10:57, Vincent Stehl? wrote:
> Starting with version 2.26, sfdisk defaults to a unit of 512 B sectors.
> With those recent versions of sfdisk, the create-boot-sd.sh script ends
> up creating a boot partition of 240 KB, which is too small to contain a
> Linux kernel.
> 
> As it is difficult to address both pre and post v2.26 sfdisk versions in
> a single command, we change the create-boot-sd.sh script to use parted
> instead. While at it, we set the boot partition size to 64 MB, which
> should be enough for everyone.
> 
> Signed-off-by: Vincent Stehl? <vincent.stehle@freescale.com>
> Cc: Luca Ceresoli <luca@lucaceresoli.net>
> Cc: Gary Bisson <gary.bisson@boundarydevices.com>
> 
> ---
> 
> 
> Hi,
> 
> This is a second proposal, using parted this time. Even with sfdisk
> `--unit' parameter, I could not find an eleguant solution to support all
> versions of sfdisk, sorry. Please let me know if you find switching to
> parted acceptable.

 I really don't like that we would rely on a tool installed on the host.

 Is there any reason why genimage (cfr. wandboard) wouldn't work, like I
suggested earlier?

 Regards,
 Arnout

> 
> This is tested on Sabre AI with an i.MX6 Quad.
> 
> Best regards,
> 
> V.
> 
> 
> Changes in v2
> -------------
> - Switch to parted, as advised by Gary.
> - Fix spelling in commit message, spotted by Luca.
> 
> 
>  board/freescale/create-boot-sd.sh | 10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/board/freescale/create-boot-sd.sh b/board/freescale/create-boot-sd.sh
> index af45115..d80bd52 100755
> --- a/board/freescale/create-boot-sd.sh
> +++ b/board/freescale/create-boot-sd.sh
> @@ -59,10 +59,12 @@ sync
>  # - Bootloader at offset 1024
>  # - FAT partition starting at 1MB offset, containing uImage and *.dtb
>  # - ext2/3 partition formatted as ext2 or ext3, containing the root filesystem.
> -sfdisk ${DEV} <<EOF
> -32,480,b
> -512,,L
> -EOF
> +parted --script "${DEV}" \
> +       mklabel msdos \
> +       unit MiB \
> +       mkpart primary fat16 1 64 \
> +       mkpart primary ext2 64 100% \
> +       print
>  
>  sync
>  
> 


-- 
Arnout Vandecappelle                          arnout at mind be
Senior Embedded Software Architect            +32-16-286500
Essensium/Mind                                http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium           BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
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