About 3 to 3.5 GB of disk space is required - the Ureka tarfile itself is about 1 GB, but unpacking and installing the tarfile contents will take up more space, so you will temporarily need as much as 4.5 GB of free disk space to install the software.

If you will install over the network, you will need an active Internet connection to download the software, If you picked up a DVD at a conference, you will need a DVD drive to copy the software onto the computer. The Internet and/or DVD drive is only needed during the installation.

Ureka is intended to require only standard dependencies on desktop systems. It requires about 70 common OS libraries that are usually already installed on most machines. Please let us know if you are missing any libraries needed by Ureka.

Some of the included software (e.g. xgterm, ximtool) needs the X Window System (X11).

On Linux, X11 is typically present. Ubuntu plans to move their graphics system from X Windows to Unity, but as of this writing it still has X windows support by default.

On Mac OSX, X11 is available from your OSX install up to 10.7 (Lion) but no longer included in OSX 10.8 (Mountain Lion). In any version of Mac OSX, you can use XQuartz from

An important note for 64-bit Linux users: Several newer 64-bit Linux distributions no longer ship with support for 32-bit binaries, which means that IRAF and related packages will not work on these systems without installing some additional packages. See 32-bit Support on 64-bit Linux for more information about this problem.

A C compiler is not required for Ureka, but it may be necessary for installing some third party software. For example, some Python packages from contain C extensions and cannot be installed without a C compiler.