+.. container:: foldup
+
+ .. container:: expandinstructions
+
+ Click on an item to expand it
+
+ Updating the VM or installing new packages doesn't work
+ The VM uses as service that tries to figure out the best/closest package
+ repository for you. In some network environments this service might not work
+ well, or not at all. To check if this is a problem, you can modify the
+ respective configuration by hand. Edit ``/etc/apt/sources.list`` (you need
+ to use ``sudo`` for that) and replace the package repository URL with a
+ mirror close to you. A comprehensive list of mirrors is available at:
+ http://www.debian.org/mirror/list
+
+ Pick one and replace all ``geomirror.debian.net`` URLs with the new mirror
+ URL. For example, in Canada you might want to change::
+
+ deb http://i386-geomirror.debian.net/debian squeeze main non-free contrib
+
+ to::
+
+ deb http://ftp.ca.debian.org/debian/ squeeze main non-free contrib
+
+ Only modify lines that refer to ``geomirror`` (all of them), but do **not**
+ modify entries for ``security.debian.org``.
+
+ Our proxy setup at work prevents APT from downloading packages
+ APT needs to be told how to access the proxy. Talk to your local sysadmin
+ and ask for the proxy's address (maybe a username and password too), as well
+ as the ports for HTTP and FTP proxies. With this information add the
+ following lines in the file, /etc/apt/apt.conf.d/80proxy. This will ensure
+ that after an upgrade changes won't be lost::
+
+ Acquire::http::proxy "http://<username>:<password>@<proxy>:<port>/";
+ Acquire::ftp::proxy "ftp://<username>:<password>@<proxy>:<port>/";
+ Acquire::https::proxy "https://<username>:<password>@<proxy>:<port>/";
+
+ I cannot hear sounds played in the virtual machine
+ By default the sound is muted. To enable playback launch the mixer applet by
+ clicking on the mixer icon in the task bar. Unmute the master volume
+ control. Now click on the "Volume control" to load the channel mixer dialog.
+ Unmute the "Master" and "PCM" channels and raise the volume as desired. You
+ should now be able to hear sounds played within the virtual machines through
+ your host computer's speakers.
+
+ My VM lost mounted host directories after upgrading from VirtualBox from 3.x to 4.x
+ NeuroDebian VMs prior 6.0.3 were shipped with guest additions from
+ 3.x series of VirtualBox and some initial versions of VirtualBox in
+ 4.x series have failed to mount host directories properly.
+ VirtualBox 4.0.8 seems to work fine with guest additions from 3.x
+ series. If you nevertheless want to upgrade guest additions within
+ NeuroDebian VM, please rebuild the version available from the
+ backports::
+
+ sudo apt-get install -y linux-headers-2.6-`dpkg --print-architecture`
+ sudo apt-get install -y -t squeeze-backports virtualbox-ose-guest-dkms \
+ virtualbox-ose-guest-utils virtualbox-ose-guest-x11
+
+ and reboot VM.
+
+ My VM lost mounted host directories, and display auto-resizing after upgrade
+ NeuroDebian VMs ship without Linux kernel headers pre-installed to
+ minimize distribution/running footprint for one time throw-away
+ usages of the VM. To install headers package(s) just run
+
+ sudo apt-get install -y linux-headers-`dpkg --print-architecture`
+
+ and reboot VM.
+
+ I am still running an older VirtualBox 3.x
+ Download one of the image files listed below. These older releases
+ are distributed as a `zip` file. Please extract all files from the
+ `.zip` file, using appropriate software for your operating system.
+
+ * `NeuroDebian 6.0.2 image (32bit)
+ <http://neuro.debian.net/debian/vm/neurodebian_6.0.2_i386.zip>`_ [~545MB]
+
+ * `NeuroDebian 6.0.2 image (64bit)
+ <http://neuro.debian.net/debian/vm/neurodebian_6.0.2_amd64.zip>`_ [~560MB]
+
+
+What has changed
+----------------
+
+.. container:: foldup
+
+ .. container:: expandinstructions
+
+ Click on an item to expand it
+
+ 7.8.0 -- 2 Feb 2015
+ * VM appliance based on the updated wheezy point release 7.8.0.
+ Should resolve problems with upgrades of the guest additions.
+
+ 7.4.20140423 -- 24 Apr 2014
+ * VM appliance based on the updated wheezy point release 7.4.
+ Should resolve problems with upgrades of the guest additions.
+ See http://neuro.debian.net/faq.html#comment-1351846812
+
+ 7.4.0 -- 28 Feb 2014
+ * VM appliance based on the official wheezy point release 7.4.
+
+ 7.2.0 -- 03 Nov 2013
+ * VM appliance based on the official wheezy point release 7.2.
+ * Ships with updated neurodebian-* packages:
+ - installs ipython notebook and qtconsole for "Scientific Python"
+ and "PyMVPA tutorial" welcome wizard choices.
+
+ 7.0.0 -- 15 May 2013
+ * VM appliance based on the official wheezy release.
+ * Uses xfce4-terminal by default (instead of urxvt/rxvt-unicode as
+ in beta-releases)
+
+ 6.999.b4.20130421 -- 22 Apr 2013
+ * Refreshed VM appliance to avoid lengthy initial upgrade
+
+ 6.999.b4.20121231 -- 31 Dec 2012
+ * Based on beta 4 release of debian-installer_ for wheezy
+ * Comes with XFCE4_ instead of GNOME_
+
+ 6.0.6 -- 01 Oct 2012
+ * Updated core system to Debian squeeze 6.0.6