Homebrew [WIP] twlnf, DSi NAND File ... thing ... testers with hardmod wanted

JimmyZ

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I recommend that everyone avoid using twlnf for the time being, it has a bug where it improperly saves changes to the filesystem, making any console that makes changes to its nand with twln be incompatible with the unlaunch installer
I've no idea what's causing this, I didn't write any FAT handling code, I simply called fatMount from libnds:
https://github.com/Jimmy-Z/twlnf/blob/master/arm9/source/nand.c#L250
I provided an encryption/decryption layer:
https://github.com/Jimmy-Z/twlnf/blob/master/arm9/source/nandio.c
If the dec layer is buggy, it won't mount in the first place, if the enc layer is buggy, it will mess up your nand if you did any write operations.

I'm not pointing fingers at anybody.

update: I've add a bigger warning.
 
Last edited by JimmyZ,

RocketRobz

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I've no idea what's causing this, I didn't write any FAT handling code, I simply called fatMount from libnds:
https://github.com/Jimmy-Z/twlnf/blob/master/arm9/source/nand.c#L250
I provided an encryption/decryption layer:
https://github.com/Jimmy-Z/twlnf/blob/master/arm9/source/nandio.c
If the dec layer is buggy, it won't mount in the first place, if the enc layer is buggy, it will mess up your nand if you did any write operations.

I'm not pointing fingers at anybody.

update: I've add a bigger warning.
The problem is, only one of the FAT copies is being written, instead of both of them.
This causes Unlaunch to show the FAT mismatch error.
 

JimmyZ

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The problem is, only one of the FAT copies is being written, instead of both of them.
This causes Unlaunch to show the FAT mismatch error.
Like what I said, I didn't touch the FAT handling code, so I'm not able to fix this.

Update: is this tool still considered somehow useful in anyway? I've been away for a bit and apparently there's a lot to catch up with like unlaunch and stuff, so I'm not sure if it's worthwhile to invest time into this.

And I'm not sure if I should start a poll.
 
Last edited by JimmyZ,
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SCOTT0852

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is this tool still considered somehow useful in anyway?
Nope. The whole FAT table thing caused us to avoid it in the first place, and with HiyaCFW the whole nand is on the SD card anyways so we don't need nand access other than what the unlaunch installer & fwtool (for dumping) give us.
 

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