Installing IDL or ENVI for UNIX

This section describes how to install IDL or ENVI on UNIX platforms.

Mounting the DVD on Your System

IDL and ENVI for UNIX installation programs are distributed on a DVD. The DVD mounts as idlxx or envixx). In some cases, you may need to create a /dvd directory.

The DVD mounts automatically. (On some systems, you must have root permissions to mount a removable disk. Consult your operating system documentation for instructions on mounting a DVD on your system.)

Note
Linux systems: The automount sometimes runs with incorrect permissions. Using the following unmount and mount commands ensures a smooth installation on Linux:

Insert the DVD into the DVD drive. The automount will run and display the DVD contents.
Open a terminal window and type the following commands.
     umount /dev/hdc
     mount -o ro -t udf /dev/hdc /media
Now you can proceed to the installation instructions below.

Remember how your DVD has been mounted, and use this path in place of DVD-PATH in the installation instructions.

Installing IDL

Follow the steps below to install IDL or ENVI. If you are installing in a public directory, make sure you have root or similar permissions before running the installation script.

Note
These instructions apply to the installation DVD. If you have a CD-ROM, see the file readme.txt on the installation CD for instructions.

The installer process installs the software first and then runs the License Wizard.

  1. Enter the following command at your UNIX prompt:
    2. /bin/sh /DVD-PATH/install_unix.sh 
 
    where DVD-PATH is the path to your DVD drive.
     
    A warning message may appear that indicates you must be logged in as root if you plan to install IDL or ENVI in a public directory. Click Yes to continue. The License Agreement dialog appears.
  2. To continue the installation, click Yes to accept the terms of the license agreement. The IDL Installation dialog appears.
  3. Next to the Set Directory button is the directory under which the idlxx or envixx directory will be created (where xx is the software version). The default installation directory is /usr/local/itt. The installation directory will be referred to as ITT_DIR for the remainder of the installation and licensing instructions. The dialog lists the required disk space to install and the available disk space in the selected directory. If you want to install in the default directory, proceed to Step 4.

    4. To change the default directory, click Set Directory. The Select Installation Directory dialog appears. If you do not have write permissions for a selected directory, it appears as gray text. The selected directory will be created for you if it does not already exist.

    If you are installing ENVI, and the IDL version on which ENVI is based is already installed on your system, you can install ENVI below that IDL distribution. If you want to install ENVI in this location, click Set Directory and choose the directory that contains the appropriate idlxx directory (the default location for IDL is /usr/local/itt). If you do not select the same path, another IDL distribution is installed with ENVI.

    When you have selected the installation directory and have verified you have enough disk space, click OK.

  4. The IDL Installation dialog shows the typical installation features. Select the features you want to install by checking the boxes for those features.

    5. Under Select Platforms to Install, the installer displays the platform on which you are running the installation script. Select the appropriate platforms for any machines that will run IDL or ENVI on your network.

    When the options shown in the dialog are correct, click OK. The Installation Summary dialog appears.

  5. If the selections in the IDL Installation Summary dialog are correct and you have the required disk space available, click Install. The installation starts, showing the Installation Progress dialog.
  6. Once the installation script has finished copying files to the installation directory, the Product Environment dialog appears, prompting you to create symbolic links.

    7. Symbolic links are shortcuts to the IDL or ENVI executables that you can create in your home directory or in any directory you specify that users can execute to start IDL or ENVI.

    Note
    If you choose not to create symbolic links at this time, click No Links and proceed to Step 7. You can create them after installing IDL or ENVI by doing the following:

    Use the ITT_DIR/idlxx/bin/install (or ITT_DIR/idlxx/products/envixx/bin/install) executable to create the symbolic links for you. ITT_DIR denotes the installation directory. You must execute this script from ITT_DIR.

    If you want to create symbolic links, click Create Links. The Product Links dialog appears. To set up symbolic links, choose the directory in which to create them. This can be your home directory or any other directory from which you want to start IDL or ENVI. The default directory is /usr/local/bin, which is commonly already in your PATH system environment variable. To change from the default, click the Set Directory button. If you do not have write permissions for the selected directory, it will appear as gray text. The selected directory will be created for you if it does not already exist. To accept the settings, click OK.

  7. If you chose to install the DICOM Network Services module, you will be asked if you want to configure the network services to start automatically at boot time. Click Yes or No to continue the installation.
  8. To license IDL or ENVI now, click Yes in the Licensing/Registration Program dialog. See Using the License Wizard.

    9. You can license IDL or ENVI later by typing ittlicense at the UNIX prompt after running the source commands described in Defining Environment Variables and Aliases.) To license IDL or ENVI later, or to run IDL in seven-minute demonstration mode, click No. Without the license information, IDL will operate in demonstration mode for seven-minute intervals.

  9. The Installation Complete dialog appears. Click Exit.

Unmounting the DVD from Your System

You can now unmount the DVD using one of the following commands, where DVD-Device is the name of your DVD drive: 

unmount /DVD-Device

Or, 

eject /DVD-Device