Installing bootmii to boot2 will basically write over two blocks of NAND in the boot2 sector that contains code that will basically just have the Wii look for the bootmii folder and the 3 files in it on your SD card. This boot2 sector loads up even before the system menu comes into play at all so if you get it installed to boot2, the bootmii folder with the 3 files in it is on the root of your sd card, and bootmii doesn't hate your SD card (it doesn't like a lot of SD cards at the moment
), then now when you boot up your Wii, you should be in the bootmii menu instead of the normal system menu. Check
HERE to see if your SD card is listed as compatible with bootmii. If it IS listed as compatible and it still isn't loading, you may be able to fix the problem by properly formatting your sd card. Use
THIS to format your SD card after backing up everything on it to your pc. Then just put the bootmii folder back on the card and try booting the Wii again with that.
Now then after you do this install and get your NAND backup done and everything, you may not want bootmii to come up all the time or at least not have to press something to get through it everytime you boot your Wii. So at this point there are a couple things you can do with the bootmii configuration. You can use the
Bootmii Configuration Editor by running it through the HBC (remember how we said to do this above?) Good. Now run that and configure bootmii however you want it to be set up. You can adjust the video settings to the video output of your region and change it to progressive if it's running through component cables or something, then you can set it to autoboot either the system menu as normal, or have it autoboot directly to the HBC if you want. Then set bootdelay to however many seconds you want it to stay at the bootmii menu before autobooting. You can set it to like 2 or something if you still want to have a chance to access it without changing any configurations, or you can just set it to 0 to directly autoboot whichever thing you selected.
Note that you can also do this yourself manually by opening up the bootmii.ini file in textpad or something and just removing the # signs before the AUTOBOOT= and BOOTDELAY= lines and setting that to whatever you want. The editor above is easier though so just go with that. Another option you have is just renaming the bootmii folder to something else. By doing this boot2 will not find what it's looking for on your sd card and will just continue with booting the system menu as normal. I'm not sure if this method would add any extra time to the startup searching through the whole SD card though so you may want to just use the config editor. Here's a
VIDEO showing the editor for kicks cause videos are cool. The music in it is kinda creepy/weird/trippy though so uhh...I dunno a warning about that if you're high or something.