ROM Hack DecryptedExeFS.bin Extraction, How-To

[cots]

How do I extract then rebuild the contents of DecryptedExeFS.bin ?

 

[Oorah]

How do I extract then rebuild the contents of DecryptedExeFS.bin ?

What file was it your were extracting? .3DS, .CIA, or .CIX?

 

[ihaveahax]

https://github.com/dnasdw/3dstool/releases

3dstool -xvtf exefs exefs.bin --exefs-dir exefs --header exefsheader.bin  # extract
3dstool -cvtf exefs exefs.bin --exefs-dir exefs --header exefsheader.bin  # create

there's probably some gui program out there that does it, I don't know of.

if you need to make your own exefs header, this might help: http://www.3dbrew.org/wiki/ExeFS

 

[cots]

Well, I converted a 3DS to CIA so I assumed the resulting CIA was decrypted, but was wrong so I had to decrypt the CIA too. I got it all figured out now. I was writing a guide that since was published -> https://gbatemp.net/threads/tutorial-nes-injection.433414/

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https://github.com/dnasdw/3dstool/releases

3dstool -xvtf exefs exefs.bin --exefs-dir exefs --header exefsheader.bin  # extract
3dstool -cvtf exefs exefs.bin --exefs-dir exefs --header exefsheader.bin  # create

there's probably some gui program out there that does it, I don't know of.

if you need to make your own exefs header, this might help: http://www.3dbrew.org/wiki/ExeFS

I actually used your github guide in decrypting the CIA and credited you in it.

 

[Oorah]

How do I extract then rebuild the contents of DecryptedExeFS.bin ?

How do I extract then rebuild the contents of DecryptedExeFS.bin ?

https://gbatemp.net/threads/tutorial-decrypt-3ds-get-romfs-folder-for-noobs.432987/

Or you can use my tut.