NAME [Toc] [Back]
reboot - reboot the system
SYNOPSIS [Toc] [Back]
/usr/sbin/reboot [-h|-r] [-n|-s] [-q] [-t time] [-m message]
/usr/sbin/reboot -R [-H] [-n|-s] [-q] [-t time] [-m message]
DESCRIPTION [Toc] [Back]
The reboot command terminates all currently executing processes except
those essential to the system, then reboots the system, or halts, or
makes the partition ready for reconfiguration. When invoked without
arguments, reboot syncs all disks before rebooting the system.
Options [Toc] [Back]
The reboot command recognizes the following options:
-h Shut down the system and halt.
-r Shut down the system and reboot automatically
-R Shut down the system to a ready-to-reconfigure
state and reboot if possible. If the partition is
unable to reboot, it will stop at a ready-toreconfigure
state. However, if the -H option is
also specified, the system will always stop at
ready-to-reconfigure state. This option is
available only on systems that support hardware
-H Shut down the system to a ready-to-reconfigure
state and do not reboot. This option can be used
only in combination with the -R option. This
option is available only on systems that support
-n Do not sync the file systems before shutdown.
-s Sync the file systems before shutdown; for file
systems that were cleanly mounted, modify the
fs_clean flag from FS_OK to FS_CLEAN (default).
-q Quick and quiet. Suppress broadcast of warning
messages, terminate processes by brute force (with
SIGKILL) and immediately call reboot with
arguments as indicated by the other options (see
reboot(2)). No logging is performed. The -t and
-m options are ignored with this option.
Hewlett-Packard Company - 1 - HP-UX 11i Version 2: Sep 2004
-t time Specify what time reboot will bring the system
down. time can be the word now (indicating
immediate shutdown) or a future time in one of two
formats: +number and hour:min. The first form
brings the system down in number minutes; the
second brings the system down at the time of day
indicated (based on a 24-hour clock).
-m message Display message at the terminals of all users on
the system at decreasing intervals as reboot time
approaches. The message must not contain any
embedded double quotes.
At shutdown time a message is written in the file
(if it exists), containing the time of shutdown, who ran reboot, and
Only users with appropriate privileges can execute the reboot command.
WARNINGS [Toc] [Back]
reboot does not invoke the shutdown scripts associated with subsystems
to bring them down in a cautious manner. See shutdown(1M).
If the -R option is used in a virtual partition environment on a
partitionable system, then the requested reconfiguration will not take
place until all the virtual partitions on that hard partition are shut
down and the virtual partition monitor is rebooted.
AUTHOR [Toc] [Back]
reboot was developed by HP and the University of California, Berkeley.
FILES [Toc] [Back]
/etc/shutdownlog Shutdown log
SEE ALSO [Toc] [Back]
vpartition(1), reboot(2), partition(5).
Hewlett-Packard Company - 2 - HP-UX 11i Version 2: Sep 2004 [ Back ]