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Date: Tue, 12 Feb 2008 15:03:55 +0100
From: Christophe Lohr <christophe.lohr@cegetel.net>
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Subject: Re: how to mount this mtd filesystem image?
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Max Stirling:

>>
>> My problem is as follow: I have an mtd dump file. This is not a jffs2 
>> file system image. It looks like a plain old flash file system, but 
>> which one? How may I get the content of this file system?
>>
>> 00000000 46 66 73 23 00 03 01 00 c0 ff ff ff ff ff ff ff 
>> |Ffs#............|
>> 00000010 2f 66 66 73 2d 72 6f 6f 74 00 ff ff ff ff ff ff 
>> |/ffs-root.......|
>> 00000020 2e 6a 6f 75 72 6e 61 6c 00 ff ff ff c0 00 03 00 
>> |.journal........|
>> 00000030 02 00 00 00 c0 00 04 00 03 00 00 00 c0 00 05 00 
>> |................|
>> 00000040 04 00 00 00 c0 00 06 00 05 00 00 00 c0 00 07 00 
>> |................|
>> 00000050 06 00 00 00 c0 00 08 00 07 00 00 00 c0 00 09 00 
>> |................|
>>
> The first four bytes are the magic numbers telling which flash fs this 
> might be.
>
> I did a search for those numbers and couldn't find any reference to 
> this anywhere. Try doing "file <your-mtd-dump-file> this might give 
> more information

The answer is:     "data"
:-(

Note: in fact, this file system is used by a "Nucleus Plus" system 
executed by a DSP, side to an ARM proc (that executes a Linux). It might 
be very specific to Nucleus Plus.