Copied from a 3.4 isolinux.cfg:
APPEND ramdisk_size=100000 init=/etc/init lang=uk apm=power-off hda=scsi hdb=scsi hdc=scsi hdd=scsi hde=scsi hdf=scsi hdg=scsi hdh=scsi vga=791 initrd=minirt24.gz nomce quiet BOOT_IMAGE=knoppix