Hi If CONFIG_NAND=y CONFIG_NAND_ATMEL=y barebox breaks and wont load from dataflash. I am trying to get UBI working with:- CONFIG_CMD_UBI=y CONFIG_UBI=y I remove NAND flash from config, barebox loads:- barebox 2010.08.0-00036-ga74a26f (Aug 27 2010 - 18:52:37) Board: Atmel at91sam9263-ek Malloc space: 0x23b00000 -> 0x23f00000 (size 4 MB) Stack space : 0x23af8000 -> 0x23b00000 (size 32 kB) Open /dev/env0 No such file or directory no valid environment found on /dev/env0. Using default environment running /env/bin/init... no MAC address set for eth0. please enter the one found on your board: 3a:1f:34:08:54:54 Hit any key to stop autoboot: 1 type update_kernel nor [] to update kernel into flash type update_root nor [] to update rootfs into flash type update_barebox_xmodem nor to update barebox into flash 9263-EK:/ 9263-EK:/ 9263-EK:/ regards nataraj