I have the same problem as ChaosEnergy : I can't boot bootmii on IOS :
"Error booting Bootmii IOS!"
I have just update from preloader 0.30 rev4.
All worked fine before the update.
Any solution or fix for us ?
P.S. : My Wii : 4.2E, cIOS38rev17, priiloader0.3b, bootmii/IOS 1.1 & HBC 1.6