The hackmii installer 0.7's release notes mentioned this:
General overhaul: the installer now requires BootMii/IOS to function. It will automatically be installed upon startup – either if BootMii/IOS is not installed or if it is older than the version this release comes with.
So bootmii/IOS will be installed no matter what? What if I have bootmii/boot2? They don't conflict, right?