setprop auto-boot?
These properties can be edited via either the devconf boot diskette menu system (see the Help Menu for the boot-tasks and boot-properties editing menus), the eeprom(1m) command, or by direct editing of the bootenv.rc file, which stores the pseudo-prom properties which cannot actually be stored in non-volatile ram on the x86 platform. In summary, the boot diskette menu system for the Solaris OS on x86 Platforms can be used to control auto-booting, via these properties, via either the explicit menu to select the boot device, or the general property editing menu. The the boot diskette menu system for the Solaris OS on x86 Platforms is largely self documenting, with a context-sensitive help system.