Hacking RELEASE nspBuild - Build NSP files

[Lumince]

YES! Time to see if I can make an nsp file from the patched devmenu romfs and exefs's lol

 

[EclipseSin]

@rkk You got it done before me! Oh well. I had manually built a few to get use to the pfs0 format. I've been trying to figure out the NCA format now using switchbrew so I can repack them properly with modifications. They have a flag for gamecard in their headers I believe, if I've read switchbrew right. Could probably just patch it in the kernel or secmon (whatever handles it) though now that I think of it, just like signature checks.

Might be good to add the cert and tiks in there during creation, unless the file(s) exist, and blank them out using FF's as per normal. Just a thought. Not completely sure about NSPs yet since I can't play with them besides creation and getting errors in devmenu.

Do you know what error 0x320002 is? I couldn't find that one in the wikis.
I found it, just missed it before. It's "permission denied". Haha

 

[fotuwe]

Just wait a little bit... ;^)

whats in your mind? You want to optimize something?

 

[Deleted User]

YES! Time to see if I can make an nsp file from the patched devmenu romfs and exefs's lol

Super interested in this. Please post a status update if you go through with it!

 

[Lumince]

Super interested in this. Please post a status update if you go through with it!

Im gonna try with the patched devmenu since ive been warned not to use the unpatched nca
I'll probably either get stuck or have it crash like last time though...

 

[Deleted-451877]

whats in your mind? You want to optimize something?

https://gbatemp.net/threads/cdnsp-download-repack-your-games-updates-and-dlcs-to-nsp.510096/

 

[Jaimy]

Make an NSP of devmenu itself and install it so you don't have to boot into layerdfs every time you want to install NSPs.

 

[Lumince]

Make an NSP of devmenu itself and install it so you don't have to boot into layerdfs every time you want to install NSPs.

bingo

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Bad news is, I have no idea how im gonna boot the LFS devmenu i have no titles installed!

 

[PeterGemp]

bingo

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Bad news is, I have no idea how im gonna boot the LFS devmenu i have no titles installed!

Pokemon Quest is a working donor for devmenu

 

[cearp]

thanks for making a python version.
if anyone wants a c version though, devkitpro (i think?) made one i believe (i never tested it)
https://github.com/switchbrew/switch-tools/blob/master/src/build_pfs0.c
i have compiled it (attached)

 

[JJTapia19]

Holy shit. If the new version of sx os disables signatures on every nsp... Can't wait for the custom apps to show up!

 

[Lumince]

Pokemon Quest is a working donor for devmenu

Yeaaaa, this switch isnt going online lol
can I just use a cart as a "donor"? lmao

 

[Akuma540]

Its weird, it creates a file but only 1 kb, Im trying to make a nsp from devmenu files, got Python 3.7. The outputted file got no .nsp ending

 

[CymraegAce]

Yeaaaa, this switch isnt going online lol
can I just use a cart as a "donor"? lmao

I’m with you on this; at least until the dust settles on some more battlefield testing anyhow..

 

[RicardoR12534]

How can i use this tool? When I drag the files, it just closes

 

[Dudamax]

Wait patched devmenu that can install nsps?

 

[Draxzelex]

Wait patched devmenu that can install nsps?

Yes, but you cannot launch those installed .NSPs with WIP Atmosphere via Hekate, they must be launched while running SX OS v1.3

 

[Dudamax]

Yes, but you cannot launch those installed .NSPs with WIP Atmosphere via Hekate, they must be launched while running SX OS v1.3

Thanks (I guess google is my friend now lol)

 

[der:Tom]

What do i need to pack into the .nsp file? Only the romfs content or also exefs?

 

[DKB]

So, lemme see if I understand..you get a free donor title, you use layeredfs to patch the donor tile with a modified version of devmenu which will allow you to install NSP's like CIAs for the 3DS to the system menu, which can be only ran while SX OS is booted up?

Real damn confused here.