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errors when booting on the NAND

Hi,

I am using the C6A8168 evm. When I received the evaluation board, I tried to load the kernel and the filesystem on the NAND. When booting, everything was working well. Then, I worked by using NFS filesystem. Now that I want to load the new filesystem on the NAND (by using the same method than at the beginning), there are a lot of errors when booting. (I can still enter my login at the end of the boot step). These errors are :

 

- several lines like :

    jffs2-scan-eraseblock() : Magic bitmask 0x1985 not found at 0x0c7e0000: 0x264a instead
    ...
    jffs2-scan-eraseblock() : Magic bitmask 0x1985 not found at 0x0c7e0024: 0x030a instead
    Further such events for this erase block will not be printed
    Old JFFS2 bitmask found at 0x0c7f54b8
    You cannot use older JFFS2 filesystems with newer kernels
    ...

 

- problems with fb0 :

    Error opening /dev/fb0: No such file or directory

then

    open /dev/fb0: No such file or directory
    expr: syntax error

However, I have checked and this file exists and is in the filesystem.

 

- other errors

    omaplfb: OMAPLFB_Init: OMAPLFBInit failed
    FATAL: Error inserting omaplfb (/lib/modules/2.2.34/kernel/drivers/gpu/pvr/omaplfb.ko): No such device

This file exists and I have not modified it.

 

I really don't understand why there are these errors now. Even if I try to load the original filesystem (the one that was working at the beginnig), I have these problems. I do the same operations than before. Yesterday, a lot of addresses of the NAND were not readable. Now it is working... It's completely baffling. If you have some ideas about what could be wrong with my NAND...

 

Thanks