Move predictable network device setup to first boot on mesh

src/freedombone-image-customise

 
     chroot "$rootdir" apt-get -yq install apt-transport-https
 
-    enable_predictable_device_names
     configure_firewall
     install_avahi
     install_batman

src/freedombone-image-mesh

 
 CURRENT_BLOG_INDEX=/home/$MY_USERNAME/.blog-index
 
+# Debian stretch has a problem where the formerly predictable wlan0 and eth0
+# device names get assigned random names. This is a hacky workaround.
+# Also adding net.ifnames=0 to kernel options on bootloader may work.
+function enable_predictable_device_names {
+    ln -s /dev/null /etc/udev/rules.d/80-net-setup-link.rules
+    update-initramfs -u
+}
+
 function create_avahi_mesh_service {
     service_name=$1
     service_type=$2
 
     #tomb slam all
     tmp_ram_disk 100
+    enable_predictable_device_names
     enable_batman_daemon
     #create_ram_disk 1
     #setup_amnesic_data

src/freedombone-utils-wifi

 # device names get assigned random names. This is a hacky workaround.
 # Also adding net.ifnames=0 to kernel options on bootloader may work.
 function enable_predictable_device_names {
-    if [ $rootdir ]; then
-        chroot "$rootdir" ln -s /dev/null /etc/udev/rules.d/80-net-setup-link.rules
-        chroot "$rootdir" update-initramfs -u
-    else
-        ln -s /dev/null /etc/udev/rules.d/80-net-setup-link.rules
-        update-initramfs -u
-    fi
+    ln -s /dev/null /etc/udev/rules.d/80-net-setup-link.rules
+    update-initramfs -u
 }
 
 function wifi_is_running {