#!/bin/bash

[ "$GRUB_FS" == "btrfs" ] && SUBVOL="$(mount | grep " / " | cut -d "=" -f3 | cut -d ")" -f1)" || SUBVOL="/boot"

cat <<EOF
menuentry "Network boot (iPXE)" {
    linux16 ${SUBVOL}/ipxe.lkrn
}
EOF