boot

boot - Bootstrap process overview.

 boot(1M)                    Series 700/800 Only                    boot(1M) NAME      boot - bootstrap process DESCRIPTION      The Series 700 and 800 bootstrap process involves the execution of      three software components:           -  pdc (see pdc(1M),           -  isl (see isl(1M), and           -  hpux (see hpux_800(1M)).      After the processor is RESET, pdc, the processor-dependent code      (firmware), performs a self-test and initializes the processor.  It      then loads and transfers control to isl, the operating-system-      independent initial system loader.  isl, in turn, loads and transfers      control to the hpux utility, the HP-UX-specific bootstrap loader.      hpux then downloads the HP-UX kernel object file from an HP-UX file      system and transfers control to the loaded kernel image. SEE ALSO      hpux(1M), hpux_800(1M), isl(1M), pdc(1M).