#!/bin/sh . /lib/functions.sh preinit_set_mac_address() { case $(board_name) in meraki,mr33) mac_lan=$(get_mac_binary "/sys/bus/i2c/devices/0-0050/eeprom" 102) [ -n "$mac_lan" ] && ip link set dev eth0 address "$mac_lan" ;; esac } boot_hook_add preinit_main preinit_set_mac_address