[meta-freescale] Freescale imx beta/release sd burning questions

[David Sowa]

Tom,

The .sdcard file produced by the bitbake process has the partition
information baked in already so you want to write it to the raw sd card
device.

On my particular system I write the files to /dev/sdX not to /dev/sdX1.
 The exact letter your sd card shows up as will depend on what other
devices are present in your system.

On my Ubuntu dev system when I insert the sd card the system automounts the
existing partitions so I always need to umount the partitions before I can
write to the raw device.  So the whole process looks like

insert sd card
sudo umount /dev/sdX1
sudo umount /dev/sdX2
sudo dd if=core-image-minimal-boardname.sdcard of=/dev/sdX bs=4M






On Thu, May 22, 2014 at 11:33 AM, tom campbell
<content at dinkumsoftware.com>wrote:

> List:
>
> I've built the Freescale imx6 beta successfully from:
>      fsl-yocto-3.10.17-1.0.0-beta.tar.gz
>      L3.10.17_1.0.0_beta_131223_images_MX6.tar.gz
> cd fsl-community-bsp-platform &&\
>     MACHINE=imx6slevk source setup-environment build-evk &&\
>     bitbake core-image-minimal
>
>
> I have a question about sd card partitioning.  The instructions in
> Freescale Yocto user guide 4.1 say:
>     sudo dd if=<image name>.sdcard of=/dev/sd<partition>
>     sudo dd if=<image name>.sdcard of=/dev/sd<partition bs=1M && sync
>
> No where can I find the partitioning requirements for the sd card.
> How is the SD card to be partitioned?
> Don't really understand the two commands above.  Unless <partition> is
> different, only difference is block size of writes
> Can someone point me to the partitioning requirements?
>
> thx
> tom campbell
>
> --
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