Got this from another site, looks to me as if the scaremongers are people who have bootmii installed as boot2 and whant it to look like they have something that others don't, just my opinion :
Sometimes you just have to grow a pair, throw caution to the wind, check your facts, and go for it. Here is what I have experienced boys & girls.
First of all you want to go back to one of your SD cards and reformat it to FAT. Not Fat32, not NTFS, not WBFS, FAT. Plain ole simple FAT. As in the dos command:
format o:/FS:FAT (substitute your drive letter for O:/) duh!
Then copy your bootmii files over to it. No, not any nand backups you might have previously done, just the bootmii files in the folder called "bootmii". Then redo your NAND backup. Make damn sure that there are no errors on it, none. Not even one that says error verifying a bad block. Even the bad blocks get verified. It should say verify successful when it is done.
Okay then, go back out to your sysmenu and make any change, move some of your menu around. Rearrange things to make it look just a little different. Doesn't have to be a drastic change, just change it a little.
Then go back into HBC and reload Bootmii. Then select the copy from SD card option and it will give you that warning if you don't have it as boot2 la de dah! Oh I am scared now, Bullshit! Just don't be messing with power cords when you do this crap and pray the good lord doesn't hate you and sends a power outage your way when you start this. It will tell you if you want to start the simulation mode, hit A+B+X+Y. This does NOT mean hit one after the other or hitting A&B then X&Y. You have to hit all 4 at the same time. I thought for sure I was not going to get past this when I just slammed my hand down on the controller and mashed all 4 buttons at exactly the same time and guess what? The darn thing started going through the simulated load and when it was done with the simulation this is what it looked like:
As you can see the simulation was successful and it is ready to write 46 blocks as represented by the green blocks on the display. You might ask why only 46 blocks? That is because it is only re-writing the blocks it finds that are different than the Nand you just read. I only moved a couple menu items around so thereby it was not a big change and only needs to restore 46 blocks to put the Wii's Nand back the way it was when I did the backup. I hope you all are following this because I won't be drunk enough to explain it again.
So I do as the screen says and hit start and it blows right through those 46 blocks in a couple seconds and it looks like this:
And as you can see I HAZ SUCCESS! :mrgreen: It wrote the 46 blocks and then asked me for money. :lol: And now that I see that it does work I might even consider it. But there you have it, the damn thing does work installed as IOS and works well. I went out to my Sysmenu and everything was back on the screen the way it was before I moved it around. I have even turned off the Wii completely and back on to find it still working just fine. Preloader loads, HBC & HBB load, Connects to WiFi, USB Loader CFG works. It all bloody works just dandy.
Now who is buying me the first drink? Damn I'm thirsty!