REBOOT(8) System Manager's Manual REBOOT(8)
reboot - restart the operating system
/usr/etc/reboot [ -dnq ] [ boot arguments ]
reboot executes the reboot(2) system call to restart the kernel. The
kernel is loaded into memory by the PROM monitor, which transfers con-
trol to it. See boot(8S) for details.
Although reboot can be run by the super-user at any time, shutdown(8)
is normally used first to warn all users logged in of the impending
loss of service. See shutdown(8) for details.
reboot performs a sync(1) operation on the disks, and then a multiuser
reboot is initiated. See init(8) for details.
reboot normally logs the reboot to the system log daemon, syslogd(8),
and places a shutdown record in the login accounting file
/var/adm/wtmp. These actions are inhibited if the -n or -q options are
Power Fail and Crash Recovery
Normally, the system will reboot itself at power-up or after crashes.
-d Dump system core before rebooting.
-n Avoid the sync(1). It can be used if a disk or the processor is
-q Quick. Reboots quickly and ungracefully, without first shutting
down running processes.
If a boot argument string is given, it is passed to the boot command in
the PROM monitor. The string must be quoted if it contains spaces or
other characters that could be interpreted by the shell. If the first
character of the boot argument string is a minus sign `-' the string
must be preceded by an option terminator string `--' For example:
reboot -- -s
to reboot and come up single user,
to reboot to a new kernel. See boot(8S) for details.
/var/adm/wtmp login accounting file
sync(1), reboot(2), boot(8S), fastboot(8), fasthalt(8), fsck(8),
halt(8), init(8), panic(8S), shutdown(8), syslogd(8)
4 July 1990 REBOOT(8)