diff --git a/buildozer/tools/packer/.gitignore b/buildozer/tools/packer/.gitignore
index e893b4d..738caae 100644
--- a/buildozer/tools/packer/.gitignore
+++ b/buildozer/tools/packer/.gitignore
@@ -1 +1,2 @@
 packer_cache
+output-from-netboot-iso
diff --git a/buildozer/tools/packer/README.md b/buildozer/tools/packer/README.md
index 462aec5..37d6574 100644
--- a/buildozer/tools/packer/README.md
+++ b/buildozer/tools/packer/README.md
@@ -18,3 +18,4 @@ You want to edit `http/preseed.cfg` and `template.json` before building an image
 
   - [compact the image](https://crysol.github.io/recipe/2013-10-15/virtualbox-compact-vmdk-images/)
   - trigger a build on travis, torrent creation and gdrive upload when buildozer is released
+  - https://www.packer.io/docs/builders/virtualbox-ovf.html
diff --git a/buildozer/tools/packer/http/preseed.cfg b/buildozer/tools/packer/http/preseed.cfg
index 423c81f..0ad12aa 100644
--- a/buildozer/tools/packer/http/preseed.cfg
+++ b/buildozer/tools/packer/http/preseed.cfg
@@ -12,10 +12,10 @@ d-i netcfg/wireless_wep string
 
 ### Mirror
 d-i mirror/country string manual
-# d-i mirror/http/hostname string fr.archive.ubuntu.com
-# d-i mirror/http/directory string /ubuntu
-d-i mirror/http/hostname string 192.168.1.16:3142
-d-i mirror/http/directory string /fr.archive.ubuntu.com/ubuntu
+d-i mirror/http/hostname string fr.archive.ubuntu.com
+d-i mirror/http/directory string /ubuntu
+# d-i mirror/http/hostname string 192.168.1.16:3142
+# d-i mirror/http/directory string /fr.archive.ubuntu.com/ubuntu
 d-i mirror/http/proxy string
 
 ### Time
diff --git a/buildozer/tools/packer/http/welcome/buildozer.css b/buildozer/tools/packer/http/welcome/buildozer.css
index 6871cd2..0cd7a9f 100644
--- a/buildozer/tools/packer/http/welcome/buildozer.css
+++ b/buildozer/tools/packer/http/welcome/buildozer.css
@@ -5,3 +5,11 @@ body {
 pre {
     padding: 20px;
 }
+
+.warning {
+    background-color: #fff5f6;
+    border-left: 2px solid #c0392b;
+    padding: 20px;
+    margin-bottom: 2.5rem;
+    padding-bottom: 1px;
+}
diff --git a/buildozer/tools/packer/http/welcome/index.html b/buildozer/tools/packer/http/welcome/index.html
index 95ed6e3..34eeab3 100644
--- a/buildozer/tools/packer/http/welcome/index.html
+++ b/buildozer/tools/packer/http/welcome/index.html
@@ -21,31 +21,66 @@
 
 <h2>How to use the VM</h2>
 <p>
-    Buildozer has been used to build a project and should be functionnal
-    for yours. It is preferrable to add a Shared Folder and build from there.
+    Buildozer is ready to be used. You'll need internet connection for
+    download the Android SDK/NDK (automatically done), and during the first
+    compilation.
+    <br/>
+    It is preferrable to add a <a href="#sharefolder">share a folder
+    </a> between your host and the VM, then build from there.<br/>
+
     By the time we shipped the VM and you using it, you may need to
     <a href="#update-buildozer">update buildozer</a>.
 </p>
 <p>
-    Go into your project directory, then:
-    <pre># Just build your application
-buildozer android_new debug
-
-# Build your application, deploy on the phone,
-# run it, and display the logs from the phone
-buildozer android_new debug deploy run logcat</pre>
+    <b>Don't try to use latest Android SDK or NDK</b>. The defaults from buildozer
+    works: Android SDK 20, Android NDK 9c. Recent Android SDK doesn't work
+    the same as before (no more android command), and python-for-android
+    project have issues with it. As for NDK, you can use r13c, it works too.
 </p>
-<p class="warning">
+<ol>
+    <li>First time only, in your project directory: <code>buildozer init</code></li>
+    <li>Adjust the <code>buildozer.spec</code>:
+        <pre>[buildozer]
+# change the name of your app
+package.name = myapp
+
+# change the domain of your package
+package.domain = com.mydomain
+
+# specify hostpython2 manually. If you want to use python 3, check buildozer
+# README about it, the VM is not preinstalled for that.
+requirements = hostpython2,kivy
+
+[buildozer]
+# update the build directory (issue with virtualbox shared folder and symlink)
+build_dir = /build/myapp
+</pre></li>
+    <li>Build your application: <code>buildozer android_new debug</code></li>
+    <li>Build and deploy, run and get the logs: <code>buildozer android_new debug deploy run logcat</code></li>
+</ol>
+
+<h2 id="sharefolder">Share a folder</h2>
+<p>
+    Virtualbox allows you to share a folder between your computer and the
+    VM. To do, just:
+    <ol>
+        <li>Go into Devices &lt; Shared Folders &lt; Shared Folders Settings</li>
+        <li>Add a new folder, select the automount option</li>
+        <li>Reboot the VM (that's easier)</li>
+        <li>You'll find your new directory at <code>/media/sf_directoryname</code></li>
+    </ol>
+</p>
+
+<div class="warning">
     Virtualbox doesn't support symlink in Shared Folder anymore. So buildozer
     will fail during the build.<br/>
     We already created a <code>/build</code> directory where you can put your
     build in it. Edit your <code>buildozer.ini</code>:
     <pre>[buildozer]
 build_dir = /build/buildozer-myapp</pre>
-</p>
+</div>
 
-<a name="update-buildozer"></a>
-<h2>Update buildozer</h2>
+<h2 id="update-buildozer">Update buildozer</h2>
 <p>
     The buildozer version you have may be outdated, as well as the dependencies.
     The best is to regulary update buildozer:
diff --git a/buildozer/tools/packer/scripts/additional-packages.sh b/buildozer/tools/packer/scripts/additional-packages.sh
index f8ee816..b97ebe8 100644
--- a/buildozer/tools/packer/scripts/additional-packages.sh
+++ b/buildozer/tools/packer/scripts/additional-packages.sh
@@ -1,10 +1,13 @@
 #!/bin/bash -eux
+# Don't use openjdk-9, the conf directory is missing, and we get
+# an error when using the android sdk:
+# "Can't read cryptographic policy directory: unlimited"
 
 wget http://bootstrap.pypa.io/get-pip.py
 python get-pip.py
 rm get-pip.py
 
-apt-get -y install lib32z1 lib32ncurses5
+apt-get -y install lib32stdc++6 lib32z1 lib32ncurses5
 apt-get -y install build-essential
-apt-get -y install git openjdk-9-jdk --no-install-recommends zlib1g-dev
+apt-get -y install git openjdk-8-jdk --no-install-recommends zlib1g-dev
 pip install cython buildozer python-for-android
diff --git a/buildozer/tools/packer/scripts/setup.sh b/buildozer/tools/packer/scripts/setup.sh
index 701f09d..2338387 100644
--- a/buildozer/tools/packer/scripts/setup.sh
+++ b/buildozer/tools/packer/scripts/setup.sh
@@ -38,15 +38,17 @@ sed -i "s:Greybird:Adwaita:g" /etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xsetting
 sed -i "s:Greybird:Adwaita:g" /etc/xdg/xdg-xubuntu/xfce4/xfconf/xfce-perchannel-xml/xsettings.xml
 sed -i "s:Greybird:Adwaita:g" /etc/xdg/xdg-xubuntu/xfce4/xfconf/xfce-perchannel-xml/xfwm4.xml
 sed -i "s:Greybird:Adwaita:g" /etc/xdg/xdg-xubuntu/xfce4/xfconf/xfce-perchannel-xml/xfce4-notifyd.xml
+sed -i "s:elementary-xfce-darker:elementary-xfce-darkest:g" /etc/xdg/xdg-xubuntu/xfce4/xfconf/xfce-perchannel-xml/xsettings.xml
 sed -i "s:elementary-xfce-dark:elementary-xfce-darkest:g" /etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xsettings.xml
 
 # add desktop icon
 wget $PACKER_HTTP_ADDR/buildozer.desktop
 mkdir -p /home/kivy/Desktop
 cp buildozer.desktop /home/kivy/Desktop/
-chown kivy.kivy /home/kivy/Desktop
+chown kivy.kivy -R /home/kivy/Desktop
+chmod +x /home/kivy/Desktop/buildozer.desktop
 mv buildozer.desktop /usr/share/applications/
-sed -i "s:^favorites=.*$:favorites=buildozer.desktop,exo-terminal-emulator.desktop,exo-web-browser.desktop,exo-file-manager.desktop,org.gnome.Software.desktop,xfhelp4.desktop:g" /etc/xdg/xdg-xubuntu/xfce4/whiskermenu/defaults.rc
+sed -i "s:^favorites=.*$:favorites=buildozer.desktop,exo-terminal-emulator.desktop,exo-web-browser.desktop,xfce-keyboard-settings.desktop,exo-file-manager.desktop,org.gnome.Software.desktop,xfhelp4.desktop:g" /etc/xdg/xdg-xubuntu/xfce4/whiskermenu/defaults.rc
 
 # copy welcome directory
 mkdir -p /usr/share/applications/buildozer-welcome