USB Loaders allow you to rip your own discs to an external USB hard drive and then run them from there. This will minimise load times, generally improve performance and means you can switch which Wii game you want to play without leaving your couch.
We highly recommend Configurable USB Loader as it has the most features and the best customisability of the many USB Loaders available.
You will need Configurable USB Loader v62a5 or later.
Installation procedure
1. Unzip the Configurable USB Loader .zip file and copy the contents of SDUSB-Loader_cfg##/inSDRoot to sd:/.
- You may be asked if you want to merge the directories. Answer yes.
- After this step, you should have a folder called sd:/usb-loader which contains some files and subdirectories and another folder called sd:/apps/USBLoader that contains boot.dol and some other files.
- On a Mac, you might need to copy the contents of the directories separately. You want to merge the apps folder in the .zip with the one on your SD card, not replace it.
2. If you downloaded a .dol file as well, rename the file to boot.dol and replace sd:/apps/USBLoader/boot.dol with the renamed file.
3. Edit meta.xml to use your chosen IOS using the instructions in the next section
4. Start the Homebrew Channel and run Configurable USB Loader.
- If you get an IOS249 is a stub message, then redo the meta.xml steps, perhaps choosing a different method.
5. You may be asked to select a different partition. If so, follow the following steps:
- 1. Push A to go to the partition selection menu.
- 2. Select the partition you want to use and push A to select it.
- 3. Push 1 twice to go to the global options menu.
- 4. Push 2 to save your selection (you won't need to do these steps next time, now).
source: http://gwht.wikidot.com/usb-loader