Byobu's F-keys keybindings were not working for me in virtual console a.k.a TTY. However, the Byobu F-keys keybindings were working fine in X Window terminals (LXTerminal, Sakura, Terminology, Xfce-Terminal) under X-Window-System. It was perplexing. 'byobu-keybindings' script written by Byobu author Dustin Kirkland to check the Byobu keybindings was giving me "Byobu keybindings: [ON]" message but F-keys were failing me in virtual console (TTY). Very perplexing indeed, mysterious even. I changed Byobu backend from tmux to screen and back but alas no joy. Google and DuckDuckGo also decided to left me high & dry this time. So it was time for soul-searching and man-page reading. After traveling through a gazillion man-pages, wrestling with escape codes & sequences, here, ladies & gentlemen is the holy grail.
If you use Bash as your login shell, add following code to your ~/.bashrc or /etc/bashrc or /etc/bash.bashrc
shopt -q login_shell
RETVAL=$?
if [[ "$RETVAL" == 0 ]] ; then
export TERM='linux'
else