Wifi Keyboard at boot

[Robert Heller]

Is this truely a "Wifi" (or "Blutooth") keyboard?  I believe "wireless" 
keyboards are not technically using WiFi (Wireless Ethernet) or Blutooth, but 
use some other "dedicated" RF system (eg using a USB dongle), but I could be 
wrong.

If the keyboard truely is using Wifi or Blutooth, there is not much you can
do. Both Wifi and Blutooth require a full "stack" eg a running kernel with
either the Tcp/Ip stack (for Wifi) or the Blutooth stack (for Blutooth)
started and running.  The BIOS/UEFI and Grub just don't have that running.  
You need a true USB HID Keyboard.

A (most likely) "Blutooth" keyboard is meant for a smart phone or tablet, 
which (of course) has no BIOS/UEFI or anything like Grub, and so has no need 
for a HID at boot time.  You really don't want to use this sort of keyboard 
with a desktop Linux system, partitularly if you expect/indend to interact 
with the BIOS/UEFI or Grub.  You *could* before shutting down modify the Grub 
menu file(s) to effect your next boot selection.  Combersome, but that should 
work.  Of course, if you get that wrong, you may need to scrounge a real 
wired USB keyboard to fix it.

At Thu, 30 Mar 2023 22:02:44 +0100 "Ubuntu user technical support,? not for general discussions" <ubuntu-users at lists.ubuntu.com> wrote:

> 
> Hi
> 
> Using Wifi Keyboard but at boot it is not recognisedm (cant select any grub 
> options) once it gets to welcome screen all is well again
> 
> Is there a setting to change so grub options can be choosen?
> 

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