Re: how to mount this mtd filesystem image?

[Max Stirling <vicky.irobot@gmail.com>]

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Christophe Lohr wrote:
> Hi,
> I’m not sure to be on the right mailing list…
>
> 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 |................|
> (...)
>
> Any help is welcome.
> Thanks and regards.
> Christophe
>
>
>
>
> ______________________________________________________
> Linux MTD discussion mailing list
> http://lists.infradead.org/mailman/listinfo/linux-mtd/
>   
The first four bytes are the magic numbers telling which flash fs this 
might be.

00000000 46 66 73 23


#define CRAMFS_MAGIC    0x28cd3d45


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

for eg:

->file test.cramfs.img
test.cramfs.img: Linux Compressed ROM File System data, little endian 
size 65536 version #2 sorted_dirs CRC 0xf23fc956, edition 0, 46 blocks, 
16 files.



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