Complete Installation¶

There are three main components of the Appion system: a Database Server, a Processing Server and a Web Server. These may be installed on separate computers, or on the same computer. The following Main Install Instructions are intended for a production system. We recommend using the CentOS operating system, but we include instructions for Fedora under the Alternative Options below. Also under Alternative Options you will find instructions for installing Appion with an existing Leginon installation as well as instructions for installing a fully functional demo version of Appion. The demo version provides an installation script which makes installation very quick and easy and includes groEL images for you to begin processing right away.

Main Install Instructions:¶

1. Select Linux distribution to use
2. CentOS Installation:
   1. Instructions for installing CentOS on your computer
   2. Download additional Software (CentOS Specific)
3. Database Server Installation
4. Processing Server Installation
5. Web Server Installation
6. Create a Test Project
7. Setup Remote Processing

Alternative Options:¶

1. Fedora Installation:
   1. Instructions for installing Fedora on your computer
   2. Download additional Software (Fedora Specific)
2. Installing Appion with an existing Leginon installation
3. Install Appion and Leginon using the auto-installation tool

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