(bootcodes.html)
Besides the above mentioned bootcodes, the isolinux will accept all the normal kernel boot codes i.e. vga=xxx for the framebuffer resolution, splash=verbose|silent to turn on or off the splash screen, acpi=off noapic nolapic parameters, init 3, irqpoll, ide=nodma, pci=nomsi, pnpacpi=off pnpbios=off
I do not know the rsbac_on option, but doesn't this work:
livecd rsbac_on
?