
======================================================================
  bty __BTY_VERSION__ live env

  ``bty-on-tty1.service`` runs on tty1 unconditionally. When
  ``bty.server=URL`` + ``bty.mac=MAC`` are on the kernel command
  line (set by ``ipxe_tui.j2`` / ``ipxe_flash.j2`` for PXE boots),
  ``bty`` GETs ``<server>/pxe/<mac>/plan`` and dispatches:

      mode=auto        -> flash without prompts, then reboot.
      mode=interactive -> drop into the wizard.
      mode=local       -> print a notice and exit cleanly.

  USB-local (no cmdline args) falls back to scanning the local
  image-root directory. See ``journalctl -u bty-on-tty1`` for
  details.

  Alt+F2 (through Alt+F6) drops into a root shell on the alternate
  VTs for diagnostics; Alt+F1 returns to ``bty``.

  Remote diagnostics: sshd is up on port 22.
      ssh root@\4      password: bty
  (lab credential -- assumes the live env runs on a trusted segment)
======================================================================

bty __BTY_VERSION__ on \n (\l)
