bad image sequence number ubi_error even after flash_eraseall

[mihaitaivascu]

Hi all,    

  I was able to update the NAND succesfully using MFGtools on my imx6l phytec board.

    But when I try to boot the image I got the following issues:

booting 'nand'

ubi0 error: scan_peb: bad image sequence number 459621934 in PEB 832, expected 706885778

Erase counter header dump:

        magic          0x55424923

        version        1

        ec             1

        vid_hdr_offset 2048

        data_offset    4096

        image_seq      459621934

        hdr_crc        0x49c942ea

erase counter header hexdump:

00000000: 23494255 00000001 00000000 01000000                UBI#............

00000010: 00080000 00100000 2e46651b 00000000                .........eF.....

00000020: 00000000 00000000 00000000 00000000                ................

00000030: 00000000 00000000 00000000 ea42c949                ............I.B.

ubi0 error: ubi_attach_mtd_dev: failed to attach mtd0, error -22

failed to attach: Invalid argument

could not open /dev/nand0.root.ubi.kernel: No such file or directory

Booting 'nand' failed: No such file or directory

booting 'nand' failed: No such file or directory

 What could be wrong?

  I have modified ucl2.xml script so it does flash_eraseall on all mtd partitions. The error persists. What should I investigate next? Is there an alternative to ubifs? Should I check for specific ubifs features in my barebox image?    

Thanks,

      Mihaita

[mihaitaivascu]

So I am trying to manually do ubiformat and ubiattach from the barebox bootloader and I get the following:

type exit to get to the menu
barebox@Phytec phyCORE-i.MX6 Ultra Lite SOM:/
barebox@Phytec phyCORE-i.MX6 Ultra Lite SOM:/
barebox@Phytec phyCORE-i.MX6 Ultra Lite SOM:/
barebox@Phytec phyCORE-i.MX6 Ultra Lite SOM:/ ubiformat /dev/nand0.root
ubiformat: nand0.root (nand), size 531628032 bytes (507 MiB), 4056 eraseblocks of 131072 bytes (128 KiB), min. I/O size 2048 bytes
libscan: scanning eraseblock 4055 -- 100 % complete
ubiformat: 3988 eraseblocks have valid erase counter, mean value is 0
ubiformat: 35 eraseblocks are supposedly empty
ubiformat: 4 bad eraseblocks found, numbers: 4052, 4053, 4054, 4055
ubiformat: warning!: 29 of 4052 eraseblocks contain non-ubifs data
ubiformat: warning!: use '-y' to force erasing
ubiformat: Invalid argument
barebox@Phytec phyCORE-i.MX6 Ultra Lite SOM:/ ubiattach /dev/nand0.root
ubi0 error: scan_peb: bad image sequence number -163685122 in PEB 832, expected 962560839
Erase counter header dump:
magic 0x55424923
version 1
ec 1
vid_hdr_offset 2048
data_offset 4096
image_seq -163685122
hdr_crc 0xd05fc800
erase counter header hexdump:
00000000: 23494255 00000001 00000000 01000000 UBI#............
00000010: 00080000 00100000 fe5c3ef6 00000000 .........>\.....
00000020: 00000000 00000000 00000000 00000000 ................
00000030: 00000000 00000000 00000000 00c85fd0 ............._..
ubi0 error: ubi_attach_mtd_dev: failed to attach mtd0, error -22
failed to attach: Invalid argument

What could be the issue?

Best regards,

         Mihaita

[gusarambula]

Hello Mihaita,

Is this issue persisting?

I would suggest looking for more insights directly with Phytec, which support this board and its BSP.

Regards,

[mihaitaivascu]

Hi,

    Yes, the issue was not been solved. Phytec cannot help or are not so eager to help, at least not for free.

Regards,

       Mihaita