By default, the keyboard subsystem does not create the appropriate devices yet.
Make sure you reconfigure your kernel with the following option in the kernel
If both an AT keyboard USB keyboards are used at the same time, the
AT keyboard will appear as
The USB keyboards will be
You can see some information about the keyboard with the following command:
kbdcontrol -i < /dev/kbd1
or load a keymap with
kbdcontrol -l keymaps/pt.iso < /dev/kbd1
for more possible options.
You can swap console keyboards by using the command
kbdcontrol -k /dev/kbd1
From this point on, the first USB keyboard will be the keyboard
to be used by the console.
If you want to use a USB keyboard as your default and not use an AT keyboard at
all, you will have to remove the
.Cd device atkbd
line from the kernel configuration file.
Because of the device initialization order,
the USB keyboard will be detected
the console driver
initializes itself and you have to explicitly tell the console
driver to use the existence of the USB keyboard.
This can be done in
one of the following two ways.
Run the following command as a part of system initialization:
kbdcontrol -k /dev/kbd0 < /dev/ttyv0 > /dev/null
(Note that as the USB keyboard is the only keyboard, it is accessed as
or otherwise tell the console driver to periodically look for a
keyboard by setting a flag in the kernel configuration file:
device sc0 at isa? flags 0x100
With the above flag, the console driver will try to detect any
keyboard in the system if it did not detect one while it was
initialized at boot time.
Make the keyboards available through a character device in
The above lines will put the French ISO keymap in the ukbd driver.
You can specify any keymap in
(depending on the console driver being used) with this option.
Do not allow the user to change the keymap.
Note that these options also affect the AT keyboard driver,