For DEC RX11 Floppy Disks and the IBM compatable ROM boot programs, assemble rxboot.s, strip a.out, and then copy a.out to /dev/fdn; where n is the disk you desire. Then assemble rxboot2.s, and strip it. If the command ldrxboot has not been compiled, do a cc -O -s on ldrxboot.c and move a.out to ldrxboot. Finally, type "ldrxboot n rxboot2" to install the second level boot program.