Extracting firmware

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The tool for extracting iPod firmware is called extract2g. Extract2g can be found on the Linux4nano SVN at http://svn.gna.org/viewcvs/linux4nano/trunk/tools/extract2g/. The Windows binary is provided, and the Linux version can be built with a simple make command. Extract2g supports all of the Nanos (6G Classic?) as of Feb. 2009.

To obtain a list of availible files, type in: 

extract2g -l dump.img

Please note that "dump.img" can be replaced with whatever your dump file is named. To actually extract the firmwares, type in: 

extract2g -A dump.img

You should now have 3 files:

  • osos.fw
  • aupd.fw
  • rsrc.fw

These are your extracted firmware images. To learn more about these, please visit the Firmware page. If you need more information about using extract2g, type in: 

extract2g - -help

Helpful pages

http://home.gna.org/linux4nano/download/crypto_synth-1.0.pdf

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