[Gumstix-users] Fwd: A Question from a newbie in Gumstix

[Charalampos G. <har...@cs...>]

Hi Everyone,

Hello Everybody! I have recently bought a gumstix connex 400xm and a netCF
expansion board. Due to my mistake I didn't realize that it had buildroot,
and to what I want to do with this, I think OpenEmbeded will help far more.

First I saw that U-boot is not created in openembeded, so I have to pick a
pre-built one from here: http://gumstix.net/feeds/u-boot/ which has two
options for connex u-boot:

   - http://gumstix.net/feeds/u-boot/u-boot-connex-400-r1578.bin
   - http://gumstix.net/feeds/u-boot/u-boot-connex-400-r1604.bin

which have a very small change in the size (around 8 bytes).

Another problem is that I have to flash the root filesystem over ethernet
(using ssh). I don't have a serial way to connect. I have found on the net
information for that:
http://docwiki.gumstix.org/Replacing_the_filesystem_image (buildroot)

But in this documentation it has this warning:
"You need to pad the rootfs.arm_nofpu.jffs2 to the appropriate size or your
filesystem will become corrupt after reboot."
and also this:
"U-Boot (mtd0) - 256K : 262144 Bytes.
Kernel (mtd2) - 1M   : 1048576 Bytes.
Padding size is FlashTotal - Kernel - U-Boot."

So the questions are these:

   - How I can manage the padding in the openembedded images, when the
   U-Boot is prebuilt?
   - Which of the 2 revisions of u-boot should I choose?

Thank you in advance,
Χάρης