BOOT_SPARC64(8) - System Manager’s Manual (sparc64) # BOOT_SPARC64(8) - System Manager’s Manual (sparc64)
NAME # boot_sparc64 - sparc64 system bootstrapping procedures
DESCRIPTION # System starts # When powered on, after a panic, or if the system is rebooted via reboot(8) or shutdown(8), the PROM will proceed to its initialization, and will boot an operating system if autoboot is enabled.
Boot process description # The sparc64 boot process is split into two parts: a small first-stage bootblock that is written into the superblock area of a partition (and hence is limited in size to SBSIZE - DEV_BSIZE bytes) , and a second-stage boot program that resides in the filesystem proper.
...
Getty,
Sh,
Login.conf,
Login,
Rc.shutdown,
Rc,
Reboot,
Fbtab,
Kill,
Shutdown,
Securelevel,
Ttys,
Halt,
Crash,
Init INIT(8) - System Manager’s Manual # INIT(8) - System Manager’s Manual
NAME # init - process control initialization
SYNOPSIS # init [-fs]
DESCRIPTION # The init program is the last stage of the boot process. It normally executes the sequence of events described in rc(8) and begins multi-user operation.
The kernel may pass the following options to init, usually when requested by the boot(8) program:
-f
Activate fastboot mode. This is not currently supported by the OpenBSD kernel.
...
SHUTDOWN(8) - System Manager’s Manual # SHUTDOWN(8) - System Manager’s Manual
NAME # shutdown - close down the system at a given time
SYNOPSIS # shutdown [-] [-dfhknpr] time [warning-message …]
DESCRIPTION # shutdown provides an automated shutdown procedure for superusers to nicely notify users when the system is shutting down, saving them from system administrators, hackers, and gurus, who would otherwise not bother with such niceties. When the shutdown command is issued without options, the system is placed in single user mode at the indicated time after shutting down all system services.
...
SYNC(8) - System Manager’s Manual # SYNC(8) - System Manager’s Manual
NAME # sync - force completion of pending disk writes (flush cache)
SYNOPSIS # sync
DESCRIPTION # The sync utility can be called to ensure that all disk writes have been completed before the processor is halted in a way not suitably done by reboot(8) or halt(8). Generally, it is preferable to use reboot(8) or halt(8) to shut down the system, as they may perform additional actions such as resynchronizing the hardware clock and flushing internal caches before performing a final sync.
...