diff --git a/roles/ffmwu-meshing/tasks/mwu-m-pkgs.yml b/roles/ffmwu-meshing/tasks/mwu-m-pkgs.yml
index 7542827..15f8a06 100644
--- a/roles/ffmwu-meshing/tasks/mwu-m-pkgs.yml
+++ b/roles/ffmwu-meshing/tasks/mwu-m-pkgs.yml
@@ -23,7 +23,7 @@
   pip: name={{mwu_m_item}} executable=pip3
   with_items:
     - py-cpuinfo
-    - photon_core
+#    - photon_core
   loop_control:
     loop_var: mwu_m_item
   become: True
diff --git a/roles/ffmwu-server/tasks/main.yml b/roles/ffmwu-server/tasks/main.yml
index b94e000..9082f83 100644
--- a/roles/ffmwu-server/tasks/main.yml
+++ b/roles/ffmwu-server/tasks/main.yml
@@ -5,6 +5,7 @@
 
 - name: ensure needed system users are present
   user: name=admin comment="Freifunk MWU Admin" shell=/bin/bash state=present
+  become: True
 
 - name: ensure all wanted ssh keys exclusively
   authorized_key: exclusive=True state=present user=admin
@@ -33,7 +34,9 @@
 
 - name: ensure vim is default editor
   alternatives: name=editor path=/usr/bin/vim.basic
+  become: True
 
 # enable with ansible version 2.2
-#- name: set timezone to Europe/Berlin
-#  timezone: name=Europe/Berlin
+- name: set timezone to Europe/Berlin
+  timezone: name=Europe/Berlin
+  become: True
diff --git a/templates/loctevm.xml b/templates/loctevm.xml
index 459fc4f..b44a125 100644
--- a/templates/loctevm.xml
+++ b/templates/loctevm.xml
@@ -35,7 +35,7 @@
     </disk>
 
     <disk type='file' device='cdrom'>
-      <source file='{{ vm_path }}/debian-8.5.0-amd64-i386-{{ inventory_hostname }}.iso'/>
+      <source file='{{ vm_path }}/debian-8.6.0-amd64-i386-{{ inventory_hostname }}.iso'/>
       <target dev='hdc' bus='ide'/>
     </disk>