Need an Introduction to Tiny Core? Or peruse Core Concepts.
quiet norestore noswap kmap=qwerty/uk showapps pause waitusb=5:UUID="e1250876-d731-45a8-abd9-3e1d402b652f" tce=UUID="e1250876-d731-45a8-abd9-3e1d402b652f"
Xlibs.tczXprogs.tczXvesa.tczfltk-1.1.10.tczwbar.tczflwm_topside.tczkmaps.tcz
Xlibs.tczXprogs.tczXorg-7.6.tczfltk-1.1.10.tczwbar.tczflwm_topside.tczkmaps.tcz
Yes, Xorg uses its own keymaps, not the console keymap. It defaults to US, you need to set your own in xorg.conf or by using the setxkbmap tool.See /etc/X11/README.xorg.conf for an example.
setxkbmap gb
Not really, since the names don't match.
I think that might open a more general subject if boot codes could/should refer to extensions (or not).I wouldn't even know offhand if there are any such at current without first going through whole boot code list