Manual Reference Pages - CONSCONTROL (8)
- control physical console devices
mute on | off
add | delete
set | unset console
utility is used to examine and modify the physical devices which back
the virtual console devices.
If no arguments
(or only the
the current console settings are shown.
There are two types of logical consoles; a high level console which
is represented by
and a low level console.
The low level console is used for kernel
while the high level console is used by user programs like
Multiple device support is implemented only for the low level console;
the high level console is set to the first device in the console list.
Multiple console support may be invoked by passing the kernel the
flag from the boot loader, or by using
to change the list of console devices after the system has booted.
The following options are available:
| add | delete console
Add or delete a physical device from the logical console.
The device must support low-level console operations.
Adding a device will place it at the front of the list of console
devices; the first device is used for the high level console.
is the name of a console device in
the name of the directory may be omitted.
| mute on | off
Change the state of console muting.
All console output is suppressed when console muting is
| set | unset console
Set or unset the virtual console.
When unset, output from the system, such as the kernel
always goes out to the real main console.
When set, it goes to another.
This is an interface to the tty ioctl
utility first appeared in
.Fx 5.0 .
.An Jonathan Lemon
Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.