【OMAP3530】 YAFFS2 filesystem Problem on BeagleBoard

Hi:

    Now I am trying to flash YAFFS2 file system on my BeagleBoard.

    the command is:

                                nand write.yaffs 80000000 780000 $(fielsize)

    But error is coming(red):

                                yaffs: dev is 32505860 name is "mtdblock4"
                                yaffs: passed flags ""
                                yaffs: Attempting MTD mount on 31.4, "mtdblock4"
                                yaffs: auto selecting yaffs2
                                yaffs_read_super: isCheckpointed 0
                                 VFS: Mounted root (yaffs filesystem) on device 31:4.
                                 Freeing init memory: 556K
                                 Warning: unable to open an initial console.
                                 Failed to execute /linuxrc.  Attempting defaults...
                                 Kernel panic - not syncing: No init found.  Try passing init= option to kernel.

   How can I do?

   thanks