UInyaffs don't extract anything

[GoogleCodeExporter]

What steps will reproduce the problem?
1.I tried all commands available in unyaffs no luck at all
2.The system.img is a stock firmware file from a Android media player with 
Android ICS 4.03
3.The header in the system.img says 
YFSS!V10
  #      ƒ 
yaffs2 file system: 4K 24bits/1K 
mkyaffs2image version: Linux-2.6.35 Nand Controller V504, build time: Tue Jan  
8 16:34:36 2013
.                                                                               

What is the expected output? What do you see instead?

What version of the product are you using? On what operating system?
Windows 7 and Ubuntu no luck on both

Please provide any additional information below.

D:\blaat>unyaffs2 system.img test
unyaffs2 0.2.9_20120815: image extracting tool for YAFFS2.
warning: image size (279506352)is NOT a multiple of (0 + 2048).

scanning image 'system.img'... [done]
scanning complete, total objects: 53

building fs tree ... [done]
building complete, total objects: 1

extracting image into 'test'
[======================================================================] 1/1 100
%

modify files attributes... [done]

operation complete,
files were extracted into 'test'.

D:\blaat> I really have no idea how i can determine the chunck and page size

Please help

The link to the firmware 
https://mega.co.nz/#!KMkHVTCR!XSLG0gNa-z20jDqYNQbNMy89qQZC1WIQpy5SmUGAcbk

Thank you for any help ;)

Original issue reported on code.google.com by kraa...@gmail.com on 5 Mar 2013 at 9:07

[GoogleCodeExporter]

I get the same error.

unyaffs2 0.2.9_20120815: image extracting tool for YAFFS2.
warning: image size (180698352)is NOT a multiple of (2048 + 64).

scanning image 'system.ics.yaffs2_4k24bits'... [done]
scanning complete, total objects: 56

building fs tree ... [done]
building complete, total objects: 1

extracting image into 'system'
object 1: [ DIR] ''.

modify files attributes... [done]

operation complete,
files were extracted into 'system'.

Original comment by mr.yan...@gmail.com on 26 Oct 2013 at 1:01