|BOOT(9)||Kernel Developer's Manual||BOOT(9)|
boot() function handles final system shutdown, and either halts or reboots the system. The exact action to be taken is determined by the flags passed in howto and by whether or not the system has finished autoconfiguration.
If the system has finished autoconfiguration,
boot() does the following:
boot() and the
RB_NOSYNCflag is not set in howto, syncs and unmounts the system disks by calling
vfs_shutdown() and sets the time of day clock by calling resettodr(9).
RB_DUMPis set in howto, but
RB_HALTis not), saves a system crash dump.
RB_HALTis set in howto, halts the system. Otherwise, reboots the system.
If the system has not finished autoconfiguration,
boot() prints a message, and halts the system
RB_USERREQ is specified, in which case the
system will be halted if
RB_HALT is given, and
rebooted otherwise; see reboot(2) for
|December 10, 2014||OpenBSD-current|