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66AK2H06: UBIFS error (pid:1): cann't open "ubi:rootfs", error -19

Shine
Genius 13655 points
Part Number: 66AK2H06


Hello Champs,

Customer has used 66ak2h evm for a while. But it suddenly can't work. She tried to run program_evm scripts to restore the factory setting. After flashing the nand.bin, it prompted below error message when starting os:

         UBIFS error (pid:1): cann't open "ubi:rootfs", error -19

           Error reading superblock on volum 'ubi:rootfs‘ errno=-19!

     After executing nand bad command.

     00000000

     1ff80000

     1ffa0000

     1ffc0000

     1ffe0000


I have asked customer to reformat the nand flash 

http://software-dl.ti.com/processor-sdk-linux/esd/docs/06_01_00_08/linux/Overview_Getting_Started_Guide.html#program-evm-user-guide

But the error is still the same.

Is the nand flash damaged?

Thanks.
Rgds
Shine

  • 0
    TI__Guru 50170 points

    Hi, Shine,

    What do you mean the board suddenly doesn't work? Do you mean it gets that error message of "cann't open "ubi:rootfs", error -19"?

    What was the change from when it worked last time? a new UBI image? If a new UBI image, is the UBI image larger than the NAND capacity?

    what PSDK is customer using?

    When programming NAND, you can use the following commands instead of program_evm. It requires tftp and dhcp server setup, and have the ubi file in tftp server directory.

    => setenv serverip <tftp_server_ip>

    => setenv tftp_root <directory in tftpboot>

    => run get_ubi_net

    =>run burn_ubi

    Rex