sudo dpkg-reconfigure keyboard-configuration                                              
Error loading new keyboard description                                                                       
WARNING: Can not find "mac" in "macintosh_vndr/de".                                                          
WARNING: Can not find "mac" in "macintosh_vndr/de".                                                                  
Your console font configuration will be updated the next time your system                                            
boots. If you want to update it now, run 'setupcon' from a virtual console.                                          
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults                       
update-initramfs: deferring update (trigger activated)                                                               
Processing triggers for initramfs-tools (0.122ubuntu8) ...                                                           
update-initramfs: Generating /boot/initrd.img-4.4.0-21-generic                                                           
philipp@philipp:~$ sudo dpkg-reconfigure keyboard-configuration                                                          
Error loading new keyboard description                                                                                   
WARNING: Can not find "mac" in "macintosh_vndr/de".                                                                      
WARNING: Can not find "mac" in "macintosh_vndr/de".                                                                         
Your console font configuration will be updated the next time your system                                                   
boots. If you want to update it now, run 'setupcon' from a virtual console.                                                 
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults                                  
update-initramfs: deferring update (trigger activated)                                                                          
Processing triggers for initramfs-tools (0.122ubuntu8) ...                                                                   
update-initramfs: Generating /boot/initrd.img-4.4.0-21-generic