Add arm9loaderhax support

[mariogamer2]

Think the exploit is not here now so...

[astronautlevel2]

Arm9loaderhax has already been successfully implemented into ReiNAND. You need your console's OTP to use it, but it definitely works.

[mariogamer2]

OTP? Sorry I don't know a lot...

Also,what is the firmware where there is a9lh?

https://github.com/delebile/arm9loaderhax ?

[astronautlevel2]

The OTP registers are where console specific keys seem to be stored, and they are stored in read only memory which means that they can't be edited. They've been encrypted since 3.0, so you need to be on 2.1 to generate them (Unless you're on n3ds, in which case they can be brute forced). Read more about them here.

If you have your console's OTP, you can use them with arm9loaderhax to get bootime level control over your system, which Rei has successfully used to cold boot ReiNAND in a significantly decreased time (About the same as a sysnand boot).

Here's the ReiNAND commit that added arm9loaderhax compatibility for reference: https://github.com/Reisyukaku/ReiNand/commit/743b0f28bb24acd79fd50ecc4778c3d4307253a0.

[mariogamer2]

Little off topic,does there is another ARM9 exploit on more than 9.4 on O3ds? (just by curiosity)

[astronautlevel2]

Because arm9 is boot time execution code, it should work no matter the SysNAND version. There has been speculation that this could be used to have 10.5 sysnands running CFW, but there hasn't been any actual development for it yet.

[ghost]

It'd be a nice thing to have on rxTools. I'd then be able to leave behind *hax for boot. It's either that, or I have to go to AuReiNAND.

[mariogamer2]

@PokeAcer549 Same thing for me...

[urherenow]

Do you people realize that to use a9lh, you'd be giving up the entire menu? It is currently impossible to initialize the screens with a9lh before launching the FIRM. This kind of defeats the whole purpose of rxTools, so yes, you may as well use AUReiNand.

[AlbertoSONIC]

We're working on this... Rxtools, now that decrypt9 does everything better, is becoming more a cfw than a tool set. So yeah, rxTools + a9lh makes sense. Don't forget that rxTools is the most powerful cfw for the amount of patches it includes ;)

[urherenow]

@AlbertoSONIC if you guys are doing this, then the default behavior (with no button presses during power-on) should be to boot sysnand with a 9.0 FIRM. Any higher firm won't allow Decrypt 9 or the GW launcher to work...

[mariogamer2]

@urherenow Why not booting emuNAND too?

@AlbertoSONIC https://github.com/AlbertoSONIC if you guys are doing this, then the default behavior (with no button presses during power-on) should be to boot sysnand with a 9.0 FIRM. Any higher firm won't allow Decrypt 9 or the GW launcher to work...

— Reply to this email directly or view it on GitHub https://github.com/roxas75/rxTools/issues/425#issuecomment-186949347.

[urherenow]

It needs to boot emunand, of course, but you should need to hold a button down to do it. A9LH can allow for a 10.x sysnand, but you won't be able to use a Gateway or Decrypt9 (so it would also be a royal pain to get a working .cia manager installed if you didn't already install one before upgrading.

[urherenow]

Unless a sigpatch could be made for carts (then you could use FBI.3ds or something like that with a Sky...

[mariogamer2]

@urherenow I'm not thinking like you...

I'll never update sysNAND,and fu*\ linker XD (don't love team who want money...)

And I'll change to cake if it is like this...

[mariogamer2]

13b1438da830faecfd8db6fa78b1de0ce87f1500 Is adding some support,BUT don't compile like said in 3010c47c34da38cdb9a17b0ca33c7bcbfa21c496

[AlbertoSONIC]

It doesn't boot anything yet so...

[joedude1635]

Do you have an ETA yet?

[AlbertoSONIC]

Well everything is almost ready... But it freezes when firmlaunching. So it's not a matter of writing code. The problem is finding that issue and fixing it, which hopefully won't take much. So no ETA ;)

[joedude1635]

OK :)

[urherenow]

What about pasta mode then? I want pasta mode to be my default anyway.

[astronautlevel2]

I personally would rather pasta mode not be the default, as I'd be afraid of messing up my SysNAND. Also, part of the point of a9lh is that it lets us bypass SysNAND entirely and load EmuNAND at boot time, so I don't see why we would take an unnecessary risk by making SysNAND the default, especially when it doesn't provide very many benefits that I can see.

I don't have a way to check right now, but I was also under the impression that there was a setting to change what the default loading behavior was?

[joedude1635]

I think it would be ideal if emuNAND was loaded by default, but sysNAND with Pasta was loaded if a button is pressed (this button could be configured with, for example, a text file in the rxtools directory).

[urherenow]

Auto booting into emunand makes it impossible to use decrypt9 and play your twl/AGB stuff (rxtools, on o3ds, gives you the choice of twl launching from emunand or MH/SSB working...). Auto booting into pasta mode, you can just as quickly launch hblauncher_loader, or the like for other stuff.

Of course, the best of both schools of thought would be a default boot setting in the settings menu. At the moment though (unless my brain is scrambled) the most useful settings are to forceui, and disable reboot patch.

Not only do I want pasta mode for my legit ambassador games, but also so I can still use my Gateway. For me, rxTools emunand is only my backup for when FW updates break GW and they are slow to update.

@joedude1635 amen to that. Text file is always ideal. Why did someone think it was a good idea to make the config file a .json that isn't easily user editable?

[shinji257]

Just an update for those (since I want this too). There is screen_init for a9lh now. BootCtr9 and CtrBootManager9 are currently in development. For the former there is no menu but you can hold a button to change the boot. Not sure on CtrBootManager9.

[Guizzu]

There are already some guides on how to use a9lh + BootCtr9 + (CakesFW or AuReiNand). So it is possible to use tools like Decrypt9 on SysNAND...

All we need now is rxTools to support a9lh!