[yocto] Atom-pc, usb installation - NO BOOTABLE DEVICE

[Simon Bolek]

Hi,

The following is the case:
1) atom-pc with ssd 80 GB hard drive(the only one, no optical, no usb,
etc.) as a target device
2) core-image-sato bitbaked and moved to usb device successfully
3) usb 'install' to atom-pc successfull (so the install script says)
4) after removing the usb device, pressing enter the boot says NO BOOTABLE
DEVICE

WHY?

At the same time, ISO image (generated at the same bitbake run) is working
in virtual box like a charm. 'Install' was successfull and booting fine - i
get GRUB menu with one 'Linux' entry as expected.

On the Atom-pc this is not working. So something has to be missing. Maybe
you will have a clue.
Here are the details:
The SSD HDD is /dev/sda  with the partition table:
/dev/sda1 - boot
/dev/sda2 - rootfs
/dev/sda3 - swap
there is no asterix at boot partition

under /dev/sda1/grub there is grub.cfg with:
menuentry "Linux" {
   set root=(hd0,1)
   linux /vmlinux root=/dev/sda2 rw
}
  - so first HDD, first/boot partition
  - it points to /vmlinuz and /dev/sda2
It looks fine for me.
I already tried to dd if=/dev/zero of=/dev/sda bs=4M, and 'install' from
usb again, but no luck.
I already tried to put asterix on the boot partition, but than BOOT gets me
to *grub rescue>*

If you have any ideas, where to look for, please let me know.

thank you and best regards
simon :-)
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