The s6 command
s6-frontend
Software
skarnet.org

The s6 system command

s6 system regroups actions related to booting or shutting down the system.

     s6 system subcommand

• No subcommand takes any options.

s6 system help prints a short help message summarizing the options and usage of the s6 system command. It is not as detailed as this page.

Interface

     s6 system boot

• s6 system boot initializes the live directory for s6-rc then starts all the services defined in the default bundle. In other words, it brings the system from a state where nothing is running to a state where everything the user wants is running.
• This is the command that should be called as soon as the init program hands off duties.
  • On a system making use of s6-linux-init/a>, s6 system boot should be the sole command defined in the /etc/rc.init script.
  • On a system using /etc/inittab, the first line of the inittab should be: ::wait:/usr/bin/s6 system boot

The rest of the subcommands are shutdown subcommands, and they only work if the machine makes use of s6-linux-init/a> and s6-frontend has been configured to support it. On a machine that does not boot via s6-linux-init, a shutdown should be executed via the shutdown commands provided by your init system. In order for the shutdown to be clean, the s6 live stop_everything -E should be run before the init system performs a hard shutdown. For instance, if the system uses /etc/inittab, then the following line should appear in /etc/inittab: ::shutdown:/usr/bin/s6 live stop_everything -E

     s6 system reboot

• s6 system reboot reboots the machine.
• This only works if the machine makes use of s6-linux-init/a> and s6-frontend has been configured to support it.

     s6 system poweroff

• s6 system poweroff halts the system and turns the power off.
• This only works if the machine makes use of s6-linux-init/a> and s6-frontend has been configured to support it.

     s6 system halt

• s6 system halt halts the system without turning the power off.
• This only works if the machine makes use of s6-linux-init/a> and s6-frontend has been configured to support it.