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NAND Boot failed. -dm6446

Hi all,

I was trying to install MontaVista to my external flash. For this purpose I formatted my flash to ext2 and copy all OS files to /dev/hda (where my flash is )

and set boot arguments to boot from flash. Everything went right and I got the OS working. But after first boot I start getting "BOOTME" message. So i used DVFlasher  to u-boot the flash. In this step I couldnot get a healty boot that is I always got BOOTME message after rebooting the board, but by aborting the VDFlasher_x.exe I can reach the target by serial port. So In OS i erase /dev/mtd2 and /dev/mtd3.

 

Now at boot I only get messages :

 

Booting PSP Boot Loader                                                         

PSPBootMode = NAND                                                              

Manufacturer ID  = 0x000000AD                                                   

Device ID        = 0x000000DA                                                   

Pages Per Block  = 0x00000040                                                   

Number of Blocks = 0x00000800                                                   

Bytes Per Page   = 0x00000800                                                   

NAND Boot failed.                                                               

Starting UART Boot...                                                           

BOOTPSPStarting UART Boot...

BOOTPSPStarting UART Boot...

BOOTPSPStarting UART Boot... 

 

and goes like this.

 

What should I do to use nfs or OS in external flash?