Debian 11 Bullseye
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Set KeyboardMap2021/08/19
 
This is the example for setting keymap of your system.
[1] Replace to your own language on the example below.
# show current settings

root@dlp:~#
localectl 

   System Locale: LANG=en_US.UTF-8
       VC Keymap: n/a
      X11 Layout: jp
       X11 Model: pc105
# change keymap

root@dlp:~#
localectl set-keymap jp106
# show settings

root@dlp:~#
localectl 

   System Locale: LANG=en_US.UTF-8
       VC Keymap: jp106
      X11 Layout: jp
       X11 Model: jp106
     X11 Options: terminate:ctrl_alt_bksp
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