Note: This version of the VDT (1.1.14) is no longer supported. Feel free to look through the documentation and install it, but we cannot guarantee support for it. The current stable release is 2.0.0.

System requirements for VDT 1.1.14

Operating Systems

VDT 1.1.14 runs on RedHat 7.x and RedHat 9.0. It may work on other Linux releases, but we do not guarantee it.

Disk space

VDT 1.1.14 takes different amounts of space depending on the operating system you use and the portions of the VDT you install on. On RedHat 9, a full VDT installation is about 500MB.

Pre-installed Software

Pacman The VDT is installed with Pacman. For VDT 1.1.14, we recommend using Pacman 2.116. Until Pacman 3 is officially released, we do not recommend using it.
Python Pacman 2.116 requires Python 1.5.2 or later. This is usually installed on RedHat Linux computers, so it should not be a problem for you. An easy way to check the version you have is to run python, then type control-D to exit
```
% python
Python 1.5.2 (#3, Jun 11 2001, 17:43:55)  [GCC 2.95.3 20010315 (release)] on linux2
Copyright 1991-1995 Stichting Mathematisch Centrum, Amsterdam
>>> ^D
```
gcc Although most of the VDT is installed as binaries, the GNU C compiler (gcc) is required for a few portions of the installation. We recommend using the gcc that is distributed with your operating system. For RedHat 7.2, that is gcc 2.96. For RedHat 9.0, that is gcc 3.2.2.
Perl The VDT requires a complete Perl installation.
tar Make sure that you are using the GNU tar version 1.13.12 or later.