#!/bin/bash -x

set -eE -o pipefail
trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR

if [[ $EUID != 0 ]]; then
  echo "$0: error: expected to be root."
  exit 1
fi

exit 0

cat >$FAI_ROOT/etc/grub.d/40_custom <<EOF
#!/bin/sh
exec tail -n +3 \$0
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.

# https://www.coreboot.org/Serial_console # tty
# but removed unneeded stuff

serial --speed=115200
terminal_input --append  serial
terminal_output --append serial
EOF