Update: Semi-Automatic OS v. 2.1.0

This post is to inform you about the availability of the updated virtual machine: Semi-Automatic OS v. 2.1.0.

This new version of the Semi-Automatic OS (a lightweight virtual machine for the land cover classification of remote sensing images and GIS analyses) includes the Semi-Automatic Classification Plugin 2.5.0 for QGIS 2.2.0, already configured along with all the required dependencies (SAGA GIS, GDAL, Numpy, SciPy and Matplotlib).

Semi-Automatic OS 2
The Semi-Automatic OS is based on Ubuntu 13.10 32-bit, and it is designed to require very little hardware resources. It uses LXDE and Openbox as main desktop environment.
This virtual machine can be useful for testing the Semi-Automatic Classification Plugin, or when the installation of the required programs in the host system is problematic.

The following is a guide for the installation of the Semi-Automatic OS in the open source program of virtualization VirtualBox.

The main installation steps are:
  1. Download VirtualBox open source software from here (select a proper version depending on your OS) and install it; at the end of the installation restart the system;
  2. Download the Semi-Automatic OS virtual machine (about 500 MB) from here;
  3. Extract the virtual machine content in a directory (it requires about 2.3 GB of disk space); the file is compressed in 7z format (if needed, download the open source extraction software from http://www.7-zip.org/);
  4. Download the file SemiAutomaticOS.vbox from here, and place it into the same directory of the  file SemiAutomaticOS.vmdk; double click on the SemiAutomaticOS.vbox which should load the virtual machine in VirtualBox;
  5. Start the Semi-Automatic OS by clicking the Start button;
  6. It is recommended to install the virtualbox-guest-utils in the virtual machine, from the Menu > Preferences > Synaptic Package Manager; it allows for a better integration of the Semi-Automatic OS in the host system, such as: the resize of the system window, or the folder sharing.

Alternative to point 4:
  1. Run VirtualBox and create a new Ubuntu virtual machine;
    • Click the New button;
    • Type a name for the virtual machine (for instance Semi-Automatic OS); select Linux and Ubuntu as Type and Version respectively; click Next;

    • Set the memory size; the more is the better, but this parameter should not exceed a half of he host system RAM (for instance if the host system has 1 GB of RAM, type 512 MB); click Next;

    • In the Hard drive settings select Use an existing virtual hard drive file and select the downloaded file SemiAutomaticOS.vmdk; click Create;

Attention! If the virtual machine cannot access to internet, double click the script virtualbox_network.sh that is on the Desktop, and click Execute.

The Semi-Automatic OS includes a sample dataset (Landsat 8 images available from the U.S. Geological Survey) that can be used for testing purposes.

, you can find several video tutorials (by Jorge Santos) about the installation and configuration of the Semi-Automatic OS.

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