Petitboot is a graphical bootloader for the PlayStation 3. It's based on the existing kboot project, plus the twin windowing system for the GUI. At present, petitboot is very much a work-in-progress, but works on a test PS3. Petitboot is licensed under the GPL v2 and brought to you by Benjamin Herrenschmidt and Jeremy Kerr.
1. Put your otheros.bld file on to a USB disk, in a file called /PS3/otheros/otheros.bld. Assuming your USB disk is mounted at /media/usbdisk: