e) Create the new Rockbox-enabled image file containing the Rockbox Bootloader
iPod 4G (grayscale) users should type the following command to create the file rockboot.bin:
ipod_fw -g 4g -o rockboot.bin -i apple_os.bin bootloader-4g.bin
iPod Color/Photo users should type the following command to create the file rockboot.bin:
ipod_fw -g color -o rockboot.bin -i apple_os.bin bootloader-color.bin
iPod Nano users should type the following:
ipod_fw -g nano -o rockboot.bin -i apple_os.bin bootloader-nano.bin
iPod Video users should type the following:
ipod_fw -g video -o rockboot.bin -i apple_os.bin bootloader-video.bin
iPod Mini 1G users should type the following:
ipod_fw -g mini -o rockboot.bin -i apple_os.bin bootloader-mini1g.bin
and iPod Mini 2G users should type the following:
ipod_fw -g mini -o rockboot.bin -i apple_os.bin bootloader-mini2g.bin
which one of these do i do for my 40 gb ipod 4th gen