How I made tty1 a live display for (Systemd’s) journal (in Ubuntu 20.04)

  1. Run systemctl edit getty@tty1.service
  2. In the override file, enter
    ExecStart=-/bin/journalctl -b -ef
  3. To see it right away (without reboot), run systemctl daemon-reload followed by systemctl restart getty@tty1.service
  4. To stop the console from blanking, edit /etc/default/grub, add consoleblank=0 to GRUB_CMDLINE_LINUX_DEFAULT, save and exit. Then run update-grub and reboot.

(I adapted the service override from Remy’s old post.)