dcon(1M) — ADMINISTRATOR COMMANDS
NAME
dcon - control dual console operation
SYNOPSIS
dcon [on|off|get|help]
DESCRIPTION
The utility command dcon is used to control and report the dual console state of the system.
on Starts dual console mode. If dual console mode is already started this fact is reported and no state change occurs. This operation can only be performed by root. This command must be performed on the terminal port which will eventually become the dual console.
off Stops dual console mode. If dual console mode is not started then this fact is reported and no state change occurs. This operation can only be performed by root.
get Report the dual console state. This is the default operation if no specific operation is specified.
help Print out the usage for the command dcon.
DIAGNOSTICS
Dual console is ON.
Dual console is ON and was started at system boot.
Dual console is already ON.
Dual console is OFF.
Dual console is already OFF.
Dual console mode can’t be started from the system console.
Dual console mode must be stopped from the system console.
Dual console state can only be changed by ROOT.
Open of /dev/conctl failed, errno = <errno>.
The system console is not open.
GC_DCON_GET ioctl failed, errno = <errno>.
GC_DCON_ON ioctl failed, errno = <errno>.
GC_DCON_OFF ioctl failed, errno = <errno>.
EXIT VALUES
0 Desired operation completed successfully.
1 dcon command was given too many arguments.
2 dcon command was given an unknown argument.
3 One of the required ioctl operations failed.
4 The open of /dev/conctl failed.
FILES
/dev/conctl
/dev/console