plan9 man page for reboot

REBOOT(3)						     Library Functions Manual							 REBOOT(3)

NAME
       reboot - reboot CPU after loss of file server connection

SYNOPSIS
       write(cfd, "push reboot", 11);

       fd = open("#^/deltat", OWRITE);
       fprint(fd, "%d", delaytime);

DESCRIPTION
       This  is a combined device and stream module (see stream(3)).  The bootstrap program boot(8) pushes the module onto the file server connec-
       tion of a CPU server.  The system will then reboot automatically if the connection hangs up.  The reboot may be postponed by delaytime mil-
       liseconds by writing the decimal value of delaytime to Conventionally, this is done by /rc/bin/cpurc (see cpurc(8)).  This mechanism may be
       used to cause the machines at a particular site to come up in a fixed order, such as after a power failure.

SEE ALSO
       stream(3)

SOURCE
       /sys/src/9/port/devreboot.c

																	 REBOOT(3)