Hello, to copy a CD of data I do: mkisofs -R -r -J /cdrom | cdrecord -v fs=6m speed=4 dev=1,0 dev=1,0 - and all works fine. But now, I want to copy a CD bootable. man mkisofs gives the option: -G generic_boot_image I don't figure out what is generic_boot_image How must I pass the option -G in my previous command ? tia. -- Gerard