phpman > man > runit-shutdown(8)

SHUTDOWN(8)                    GNU/Linux System Adminstrator's manual                    SHUTDOWN(8)



NAME
       shutdown, reboot, poweroff - poweroff or reboot the system

SYNOPSIS
       /sbin/shutdown [-r] [-f] [-F]
       /sbin/reboot [-w] [-f] [-n]
       /sbin/halt [-w] [-f] [-n]
       /sbin/poweroff [-w] [-f] [-n]

DESCRIPTION
       Shutdown is a program to poweroff or reboot the system that maintains some compatibility with
       original SysV-init halt, poweroff, reboot and shutdown programs.  These programs are expected
       by some initscripts, graphical desktop environments and tools like acpi.
       When  called  as shutdown, halt or poweroff without options, runit(8) is told to shutdown the
       system and poweroff.
       When called as reboot runit(8) is told to reboot the system.
       When runit(8) is not the current init system this program sends data in the appropriate  for‐
       mat to perform the requested action to the initctl pipe, if it exists.

SHUTDOWN OPTIONS
       -r     Reboot the system instead of poweroff.


       -f     Write  a  /fastboot  flag  file. The program or the scripts responsible for the system
              boot task can test for this file when the system comes up again  and  decide  to  skip
              fsck.  The program or the scripts that perform the boot task also need to take care of
              the removal of the flag file.


       -F     Write a /forcefsck flag file. The program or the scripts responsible  for  the  system
              boot task can test for this file when the system comes up again and decide to run fsck
              with a 'force' flag.  The program or the scripts that perform the boot task also  need
              to take care of the removal of the flag file.


HALT OPTIONS
       -f     Invoke  sync(),  then force an unsafe reboot or poweroff immediately without signaling
              the init system.  This will likely result in an unclean shutdown and  can  cause  data
              loss  or corruption.  When runit is init, this option is a No-Op and all other options
              are ignored. See #899246


       --force
              Invoke sync(), then force an unsafe reboot or poweroff immediately  without  signaling
              the  init  system.   This will likely result in an unclean shutdown and can cause data
              loss or corruption.  This option works regardless of the running init system.


       -w, --wtmp-only
              No-Op, maintained for compatibility with initscripts. See #919699


       -n     Write a /etc/runit/nosync flag file. If this file exists runit does not invoke  sync()
              before  reboot or poweroff.  The /etc/runit/nosync flag file is also checked when this
              program is called with -f or --force


SWITCHING FORM OTHER INIT SYSTEMS
       This program maintains a compatibility layer with SysV-init's initctl pipe according  to  the
       spec  described in SysV-init's initctl(5). This allow one to reboot the system when switching
       from another init to runit-init.
       Currently only switching from systemd and SysV-init is tested but any other init system  that
       maintains an initctl pipe compatible with SysV's one should work.


BUGS
       Combining flags, like halt -wf is not supported, all merged short options will be ignored.
       Non existent or unsupported options are silently ignored.


SEE ALSO
       init(8)



                                           August 29, 2021                               SHUTDOWN(8)