Homebrew I Need help with making a mod of CFW Booter

[Rubberduckycooly]

i am trying to make a mod of CFW booter called RedNAND Booter and what it does is boots a file called RedNAND.img (this is so people like myself can use a seperate booter to boot redNAND while using the regular CFW booter to boot a patched sysNAND, with out swapping fw.img files)

i have the source code and i need help finding the bit in the code where it loads the fw.img file so i can modify it

(this is my first real wii U homebrew related project so any help is appreciated!)

 

[x65943]

http://gbatemp.net/threads/building-iosuhax-on-windows.447023/

Best tutorial around. Let me know if you have questions. This will make it super easy.

(This will set you up with all the tools necessary to properly build these fw.img files)

 

[veraci_00]

your best option is to use haxchi. it will boot different fw.img depending upon what button u press (if any).

 

[Ape8000]

boots a file called RedNAND.img

Um, no. It needs to be called fw.img.
You can put them in separate paths.
Haxchi 1.7 already has a config file for this.

 

[Leeful]

i have the source code and i need help finding the bit in the code where it loads the fw.img file so i can modify it

The rednand firmware still needs to be called fw.img (as mentioned before) but you can just put it in a folder called rednand.

The bit of code to change is in arm_kernel/source/main.c lines 42 and 93.

change line 42 to: static const char sd_path[] = "/vol/sdcard/rednand";
change line 93 to: if (i < 21)

As said before Haxchi 1.7 already can do this but if you just wanted a modified version of cfw booter this works.

attached is a compiled elf that loads /rednand/fw.img

 

[raggaro5]

The rednand firmware still needs to be called fw.img (as mentioned before) but you can just put it in a folder called rednand.

The bit of code to change is in arm_kernel/source/main.c lines 42 and 93.

change line 42 to: static const char sd_path[] = "/vol/sdcard/rednand";
change line 93 to: if (i < 21)

As said before Haxchi 1.7 already can do this but if you just wanted a modified version of cfw booter this works.

attached is a compiled elf that loads /rednand/fw.img

Loved Your edit thought i was the only one who wanted something like this so i added a quick icon image for the homebrew channel and just edited the xml a bit for cfw booter to make a nicer app. this is awesome