[poky] [PATCH] Fix booting from eMMC on BeagleBone Black

[Jussi Laako]

Hello,

By default, on BeagleBone, u-boot only looks for rootfs UUID from first
mmc device and thus only from microSD. Thus booting from eMMC fails in
kernel panic because command line has empty root partition UUID
"root=PARTUUID=".

This patch makes it first look in the same place as before and if the
lookup fails (no microSD inserted) it next looks up for the rootfs UUID
on the second mmc device which is the on-board eMMC. I placed the
bbappend and patch on meta-yocto-bsp layer because the BeagleBone
support in general is located there.


Best regards,

	- Jussi Laako


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