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What does the M stand for? Agoaj 06:11, 21 May 2009 (UTC)

Maybe Minimal IOS? Hallowizer (talk) 01:34, 13 May 2021 (CEST)

Modular Input\Output System. i put that up with a reference link but for some reason LoganA keeps on on reverting it with no explanation and will not get back to me on his talk page.--WiiMAn 17:57, 22 August 2009 (UTC)

WiiMAn, it keeps being reverted because you don't know that, and no one outside Nintendo does. Also, why the hell would it be Modular Input/Output System anyways. It's not modular. At all. --SquidMan 22:37, 22 August 2009 (UTC)
dude you should look up the definition of modular before snapping on people. me and LoganA discussed it as is so we are gonna leave it reverted. --WiiMAn 12:36, 24 August 2009 (UTC)
Discussed about what? LoganA (talkcontribs) 00:05, 26 August 2009 (UTC)
Squidman is right fwiw. MIOS is definitely not modular. --Svpe 21:13, 26 August 2009 (UTC)

I got a message from you the other day with an explaination. --WiiMAn 19:37, 26 August 2009 (UTC)


I heard from a rather unreliable source that MIOS patches some games, and mistakenly applies a patch for another game to the Action Replay (since it uses another game's header), preventing it from working. I find it hard to believe there is not just a check in the System Menu itself refusing to launch the disc, but they were right about the patching, so is there any truth to that? .Hyper//Hacker 14:32, 7 June 2009 (UTC)

Dumping the gamecube ipl from the MIOS

would it be possible to dump the ipl from the MIOS. pc hacker , developer 03:59, 7 December 2010 (CET)

PSO Patch

Does the PSO patch block PSOload? Hallowizer (talk) 20:52, 4 February 2021 (CET)

Turns out PSOload is only in PSO12, not PSO12+, so never mind. Hallowizer (talk) 18:36, 5 February 2021 (CET)

Why is the common key in there?

I feel like this should be obvious, but why does MIOS have the Wii’s keys in it? Is the GC IPL also encrypted using the same procedure as Wii titles? Hallowizer (talk) 18:49, 5 February 2021 (CET)

It doesn't seem to be included in MIOS's binary (at least, doing a quick search for the first or last few bytes of the key gives no results). MIOS might read it from OTP into memory, but I'm not 100% sure of that. To me it seems more likely that BC reads it into memory (which it needs to do since it has to decrypt MIOS itself), and then that memory was not cleared when loading MIOS. (As for the encryption: MIOS's entire binary (which contains both the ARM component and the PowerPC component that functions like the GC IPL (but seems nowhere near a full copy to me at this point)) is encrypted like any other title, but there isn't any extra encryption on the PowerPC part over the ARM part.) This is mostly speculation as I haven't done much reverse-engineering of the ARM component of MIOS or of BC. --Pokechu22 (talk) 22:20, 7 March 2021 (CET)