I downloaded the pre-built OxDroid for pandaboard. I didn't see any board.dtb file in the boot folder.
Texas Instruments X-Loader 1.4.4ss (Mar 18 2011 - 14:14:59)
Reading boot sector
Loading u-boot.bin from mmc
U-Boot 2011.03-00000-g51fe52c (Jun 02 2011 - 11:41:14)
CPU : OMAP4430
Board: OMAP4 Panda
I2C: ready
DRAM: 1 GiB
MMC: OMAP SD/MMC: 0
Using default environment
In: serial
Out: serial
Err: serial
Hit any key to stop autoboot: 0
reading boot.scr
566 bytes read
Running bootscript from mmc0 ...
## Executing script at 82000000
reading uImage
3632344 bytes read
reading uInitrd
174642 bytes read
reading board.dtb
** Unable to read "board.dtb" from mmc 0:1 **
## Booting kernel from Legacy Image at 80200000 ...
Image Name: Linux-2.6.38.7-03571-g5b2e099
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 3632280 Bytes = 3.5 MiB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... OK
## Loading init Ramdisk from Legacy Image at 81600000 ...
Image Name: Android Ramdisk Image
Image Type: ARM Linux RAMDisk Image (gzip compressed)
Data Size: 174578 Bytes = 170.5 KiB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
ERROR: Did not find a cmdline Flattened Device Tree
Could not find a valid device tree
Panda #